{"title":"K Series Filters","description":"","products":[{"product_id":"k-series-specialty-add-on-filters","title":"K Series Specialty Add-On Filters","description":"\u003cstyle\u003e\n    .pw_filter_specs_only {\n      width: 100%;\n      max-width: 980px;\n      margin: 28px auto;\n      font-family: Arial, Helvetica, sans-serif;\n      color: #1f1f1f;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_specs_panel {\n      padding: 22px;\n      border-radius: 24px;\n      background: linear-gradient(135deg, #eef6ff 0%, #ffffff 52%, #f3f8ff 100%);\n      border: 1px solid #d9eaff;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_specs_grid {\n      display: grid;\n      grid-template-columns: repeat(3, 1fr);\n      gap: 12px;\n    }\n\n    .pw_filter_specs_item {\n      position: relative;\n      overflow: hidden;\n      border: 1px solid #e2edf8;\n      border-radius: 16px;\n      background: rgba(255,255,255,.88);\n      padding: 16px;\n      box-sizing: border-box;\n      transition: transform .32s ease, box-shadow .32s ease, border-color .32s ease;\n    }\n\n    .pw_filter_specs_item::before {\n      content: \"\";\n      position: absolute;\n      top: 0;\n      left: -70%;\n      width: 55%;\n      height: 100%;\n      background: linear-gradient(120deg, transparent, rgba(255,255,255,.75), transparent);\n      transform: skewX(-18deg);\n      transition: left .65s ease;\n      pointer-events: none;\n    }\n\n    .pw_filter_specs_item:hover {\n      border-color: #b7d7ff;\n      transform: translateY(-3px);\n      box-shadow: 0 10px 24px rgba(3,106,255,.09);\n    }\n\n    .pw_filter_specs_item:hover::before {\n      left: 120%;\n    }\n\n    .pw_filter_specs_item span {\n      position: relative;\n      z-index: 1;\n      display: block;\n      margin-bottom: 7px;\n      font-size: 12px;\n      line-height: 1.3;\n      color: #60758d;\n      text-transform: uppercase;\n      letter-spacing: .35px;\n      font-weight: 700;\n    }\n\n    .pw_filter_specs_item strong {\n      position: relative;\n      z-index: 1;\n      display: block;\n      font-size: 15px;\n      line-height: 1.45;\n      color: #1f1f1f;\n      font-weight: 800;\n    }\n\n    .pw_filter_primary {\n      background: linear-gradient(135deg, #036AFF 0%, #2088ff 100%);\n      border-color: #036AFF;\n    }\n\n    .pw_filter_primary span,\n    .pw_filter_primary strong {\n      color: #ffffff;\n    }\n\n    .pw_filter_primary span {\n      opacity: .88;\n    }\n\n    .pw_filter_soft {\n      background: #f4f9ff;\n      border-color: #cfe4ff;\n    }\n\n    .pw_filter_soft span {\n      color: #036AFF;\n    }\n\n    .pw_filter_warning {\n      background: #fff8eb;\n      border-color: #ffe0a6;\n    }\n\n    .pw_filter_warning span {\n      color: #a46400;\n    }\n\n    .pw_filter_options_wrap {\n      margin-top: 16px;\n      padding: 18px;\n      border-radius: 20px;\n      background: #ffffff;\n      border: 1px solid #dcecff;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_section_title {\n      margin: 0 0 14px;\n      font-size: 14px;\n      line-height: 1.3;\n      color: #1f1f1f;\n      font-weight: 800;\n      text-transform: uppercase;\n      letter-spacing: .45px;\n    }\n\n    .pw_filter_options_grid {\n      display: grid;\n      grid-template-columns: repeat(2, 1fr);\n      gap: 12px;\n    }\n\n    .pw_filter_option_card {\n      position: relative;\n      overflow: hidden;\n      border-radius: 18px;\n      border: 1px solid #dcecff;\n      background: linear-gradient(180deg, #f6fbff 0%, #ffffff 100%);\n      padding: 18px;\n      box-sizing: border-box;\n      transition: transform .32s ease, box-shadow .32s ease, border-color .32s ease;\n    }\n\n    .pw_filter_option_card:hover {\n      transform: translateY(-3px);\n      border-color: #b7d7ff;\n      box-shadow: 0 10px 24px rgba(3,106,255,.09);\n    }\n\n    .pw_filter_option_top {\n      display: flex;\n      flex-wrap: wrap;\n      align-items: center;\n      justify-content: space-between;\n      gap: 10px;\n      margin-bottom: 12px;\n    }\n\n    .pw_filter_option_name {\n      margin: 0;\n      font-size: 18px;\n      line-height: 1.35;\n      color: #111;\n      font-weight: 800;\n    }\n\n    .pw_filter_item_badge {\n      display: inline-block;\n      padding: 6px 10px;\n      border-radius: 999px;\n      background: #036AFF;\n      color: #ffffff;\n      font-size: 12px;\n      line-height: 1.2;\n      font-weight: 800;\n      letter-spacing: .2px;\n    }\n\n    .pw_filter_option_block {\n      margin-top: 14px;\n    }\n\n    .pw_filter_option_label {\n      display: block;\n      margin-bottom: 8px;\n      font-size: 11px;\n      line-height: 1.3;\n      color: #60758d;\n      text-transform: uppercase;\n      font-weight: 800;\n      letter-spacing: .35px;\n    }\n\n    .pw_filter_option_card ul {\n      margin: 0;\n      padding-left: 18px;\n      font-size: 13px;\n      line-height: 1.58;\n      color: #333;\n    }\n\n    .pw_filter_feature_tags {\n      display: flex;\n      flex-wrap: wrap;\n      gap: 7px;\n      margin-top: 8px;\n    }\n\n    .pw_filter_feature_tags em {\n      display: inline-block;\n      padding: 6px 9px;\n      border-radius: 999px;\n      background: #eef6ff;\n      color: #036AFF;\n      font-size: 12px;\n      line-height: 1.2;\n      font-style: normal;\n      font-weight: 800;\n    }\n\n    .pw_filter_perf_grid {\n      display: grid;\n      grid-template-columns: 1fr;\n      gap: 8px;\n      margin-top: 10px;\n    }\n\n    .pw_filter_perf_item {\n      padding: 10px 12px;\n      border-radius: 12px;\n      background: #f4f9ff;\n      border: 1px solid #e2edf8;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_perf_item span {\n      display: block;\n      margin-bottom: 4px;\n      font-size: 11px;\n      line-height: 1.3;\n      color: #60758d;\n      text-transform: uppercase;\n      font-weight: 800;\n      letter-spacing: .35px;\n    }\n\n    .pw_filter_perf_item strong {\n      display: block;\n      font-size: 13px;\n      line-height: 1.45;\n      color: #1f1f1f;\n      font-weight: 800;\n    }\n\n    .pw_filter_notes_wrap {\n      margin-top: 16px;\n      padding: 18px;\n      border: 1px solid #dcecff;\n      border-radius: 20px;\n      background: rgba(255,255,255,.84);\n      box-sizing: border-box;\n    }\n\n    .pw_filter_notes_grid {\n      display: grid;\n      grid-template-columns: repeat(2, 1fr);\n      gap: 10px;\n    }\n\n    .pw_filter_note_item {\n      position: relative;\n      overflow: hidden;\n      display: flex;\n      gap: 10px;\n      padding: 13px 14px;\n      border-radius: 14px;\n      background: #ffffff;\n      border: 1px solid #edf3fb;\n      box-sizing: border-box;\n      transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;\n    }\n\n    .pw_filter_note_item::before {\n      content: \"\";\n      position: absolute;\n      left: 0;\n      top: 0;\n      width: 3px;\n      height: 100%;\n      background: #b9d8ff;\n      transition: width .3s ease, background .3s ease;\n    }\n\n    .pw_filter_note_item:hover {\n      transform: translateY(-2px);\n      border-color: #dcecff;\n      box-shadow: 0 8px 18px rgba(3,106,255,.08);\n    }\n\n    .pw_filter_note_item:hover::before {\n      width: 5px;\n      background: #036AFF;\n    }\n\n    .pw_filter_note_num {\n      position: relative;\n      z-index: 1;\n      min-width: 24px;\n      font-size: 12px;\n      line-height: 1.5;\n      color: #036AFF;\n      font-weight: 800;\n    }\n\n    .pw_filter_note_text {\n      position: relative;\n      z-index: 1;\n      margin: 0;\n      font-size: 13px;\n      line-height: 1.55;\n      color: #4f5f70;\n    }\n\n    .pw_filter_specs_note {\n      margin-top: 14px;\n      padding: 14px 16px;\n      border-radius: 14px;\n      background: #eef6ff;\n      border: 1px solid #dcecff;\n      font-size: 13px;\n      line-height: 1.6;\n      color: #4f5f70;\n      box-sizing: border-box;\n    }\n\n    @media (max-width: 768px) {\n      .pw_filter_specs_only {\n        padding: 0 14px;\n        margin: 22px auto;\n      }\n\n      .pw_filter_specs_panel {\n        padding: 16px;\n        border-radius: 20px;\n      }\n\n      .pw_filter_specs_grid,\n      .pw_filter_options_grid,\n      .pw_filter_notes_grid {\n        grid-template-columns: 1fr;\n      }\n\n      .pw_filter_specs_item,\n      .pw_filter_option_card {\n        padding: 15px;\n      }\n\n      .pw_filter_specs_item strong {\n        font-size: 14px;\n      }\n\n      .pw_filter_option_card ul {\n        font-size: 13px;\n      }\n\n      .pw_filter_notes_wrap,\n      .pw_filter_options_wrap {\n        padding: 15px;\n      }\n\n      .pw_filter_note_item {\n        padding: 12px 13px;\n      }\n\n      .pw_filter_note_text {\n        font-size: 13px;\n      }\n    }\n  \u003c\/style\u003e\n\u003cdiv class=\"pw_filter_specs_only\"\u003e\n\u003cdiv class=\"pw_filter_specs_panel\"\u003e\n\u003cdiv class=\"pw_filter_specs_grid\"\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e \u003cstrong\u003eSupplemental Filter\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n\u003cspan\u003eFiltration Options\u003c\/span\u003e \u003cstrong\u003e5-Stage \/ 3-Stage\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n\u003cspan\u003eRequired Pairing\u003c\/span\u003e \u003cstrong\u003eCore Filter\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n\u003cspan\u003ePackage Quantity\u003c\/span\u003e \u003cstrong\u003e1 Box \/ 2 Supplemental Filters\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n\u003cspan\u003eFilter Life\u003c\/span\u003e \u003cstrong\u003eUp to 200–1,000 Gallons per Box\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n\u003cspan\u003eFlow Rate\u003c\/span\u003e \u003cstrong\u003eDepends on Core Filter Flow and Water Pressure\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item\"\u003e\n\u003cspan\u003eSeries\u003c\/span\u003e \u003cstrong\u003eK Series\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item\"\u003e\n\u003cspan\u003eFilter Size\u003c\/span\u003e \u003cstrong\u003eApprox. 2.76 in × 6.30 in \/ Φ7 × 16 cm\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_warning\"\u003e\n\u003cspan\u003eImportant Use\u003c\/span\u003e \u003cstrong\u003eAdd-on filter only. Not intended to be used alone.\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_options_wrap\"\u003e\n\u003cdiv class=\"pw_filter_section_title\"\u003eFiltration Options \u0026amp; Item Numbers\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_options_grid\"\u003e\n\u003cdiv class=\"pw_filter_option_card\"\u003e\n\u003cdiv class=\"pw_filter_option_top\"\u003e\n\u003ch3 class=\"pw_filter_option_name\"\u003e5-Stage Reduce Fluoride\u003c\/h3\u003e\n\u003cdiv class=\"pw_filter_item_badge\"\u003eItem No. K8003\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eFilter Material\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eFirst PP Cotton\u003c\/li\u003e\n\u003cli\u003eActivated Carbon\u003c\/li\u003e\n\u003cli\u003eSecond PP Cotton\u003c\/li\u003e\n\u003cli\u003eFluoride Reduction Material\u003c\/li\u003e\n\u003cli\u003eThird PP Cotton\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eKey Functions\u003c\/span\u003e\n\u003cdiv class=\"pw_filter_feature_tags\"\u003e\n\u003cem\u003eReduces Chlorine\u003c\/em\u003e \u003cem\u003eReduces Fluoride\u003c\/em\u003e \u003cem\u003eAdd-on Filtration\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003ePerformance Details\u003c\/span\u003e\n\u003cdiv class=\"pw_filter_perf_grid\"\u003e\n\u003cdiv class=\"pw_filter_perf_item\"\u003e\n\u003cspan\u003eFilter Life\u003c\/span\u003e \u003cstrong\u003eUp to 1,000 Gallons per Box\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_perf_item\"\u003e\n\u003cspan\u003eBox Weight\u003c\/span\u003e \u003cstrong\u003eApprox. 1.39 lb Net \/ 1.52 lb Gross\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_card\"\u003e\n\u003cdiv class=\"pw_filter_option_top\"\u003e\n\u003ch3 class=\"pw_filter_option_name\"\u003e3-Stage Alkaline Filter\u003c\/h3\u003e\n\u003cdiv class=\"pw_filter_item_badge\"\u003eItem No. K8002\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eFilter Material\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eFirst PP Cotton\u003c\/li\u003e\n\u003cli\u003eAlkaline Material\u003c\/li\u003e\n\u003cli\u003eSecond PP Cotton\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eKey Functions\u003c\/span\u003e\n\u003cdiv class=\"pw_filter_feature_tags\"\u003e\n\u003cem\u003eRaises PH Level\u003c\/em\u003e \u003cem\u003eAdd-on Filtration\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003ePerformance Details\u003c\/span\u003e\n\u003cdiv class=\"pw_filter_perf_grid\"\u003e\n\u003cdiv class=\"pw_filter_perf_item\"\u003e\n\u003cspan\u003eFilter Life\u003c\/span\u003e \u003cstrong\u003eUp to 200 Gallons per Box\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_perf_item\"\u003e\n\u003cspan\u003eBox Weight\u003c\/span\u003e \u003cstrong\u003eApprox. 1.39 lb Net \/ 1.52 lb Gross\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_notes_wrap\"\u003e\n\u003cdiv class=\"pw_filter_section_title\"\u003eUse Notes\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_notes_grid\"\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e01\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eThis is a supplemental filter and must be used together with compatible K Series or SS Series core filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e02\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eChoose 5-Stage Reduce Fluoride if you want added fluoride reduction after the core filter stage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e03\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eChoose 3-Stage Alkaline Filter if you want an additional alkaline material layer designed to raise PH level.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e04\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eAlso works with Travel, Big, Royal, Imperial, Light, and Crown Berkey models as an additional gravity filter option.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e05\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eDo not over-tighten during installation. Make sure the supplemental filter is securely attached to the core filter stem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e06\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eReplace the supplemental filters when the rated capacity is reached or when water flow becomes noticeably slower.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_note\"\u003eNote: This product is an add-on supplemental filter and is not designed to replace the main core filter by itself. Filter life and flow rate may vary depending on source water quality, water pressure, core filter condition, usage frequency, and maintenance conditions. Third-party brand and model names are used for compatibility reference only.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Purewell","offers":[{"title":"5-Stage Reduce Fluoride","offer_id":45830413844645,"sku":"FL-2\/K8003","price":59.99,"currency_code":"USD","in_stock":true},{"title":"3-Stage Alkaline Filter","offer_id":45830413877413,"sku":"PH-2\/K8002","price":59.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/2788\/9317\/files\/Specialty-Add-On-Filters-for-Gravity-Water-Systems-Purewell-40490661.jpg?v=1783475058"},{"product_id":"k-series-carbon-filters","title":"K Series Carbon Filters","description":"\u003cstyle\u003e\n    .pw_filter_specs_only {\n      width: 100%;\n      max-width: 980px;\n      margin: 28px auto;\n      font-family: Arial, Helvetica, sans-serif;\n      color: #1f1f1f;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_specs_panel {\n      padding: 22px;\n      border-radius: 24px;\n      background: linear-gradient(135deg, #eef6ff 0%, #ffffff 52%, #f3f8ff 100%);\n      border: 1px solid #d9eaff;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_specs_grid {\n      display: grid;\n      grid-template-columns: repeat(3, 1fr);\n      gap: 12px;\n    }\n\n    .pw_filter_specs_item {\n      position: relative;\n      overflow: hidden;\n      border: 1px solid #e2edf8;\n      border-radius: 16px;\n      background: rgba(255,255,255,.88);\n      padding: 16px;\n      box-sizing: border-box;\n      transition: transform .32s ease, box-shadow .32s ease, border-color .32s ease;\n    }\n\n    .pw_filter_specs_item::before {\n      content: \"\";\n      position: absolute;\n      top: 0;\n      left: -70%;\n      width: 55%;\n      height: 100%;\n      background: linear-gradient(120deg, transparent, rgba(255,255,255,.75), transparent);\n      transform: skewX(-18deg);\n      transition: left .65s ease;\n      pointer-events: none;\n    }\n\n    .pw_filter_specs_item:hover {\n      border-color: #b7d7ff;\n      transform: translateY(-3px);\n      box-shadow: 0 10px 24px rgba(3,106,255,.09);\n    }\n\n    .pw_filter_specs_item:hover::before {\n      left: 120%;\n    }\n\n    .pw_filter_specs_item span {\n      position: relative;\n      z-index: 1;\n      display: block;\n      margin-bottom: 7px;\n      font-size: 12px;\n      line-height: 1.3;\n      color: #60758d;\n      text-transform: uppercase;\n      letter-spacing: .35px;\n      font-weight: 700;\n    }\n\n    .pw_filter_specs_item strong {\n      position: relative;\n      z-index: 1;\n      display: block;\n      font-size: 15px;\n      line-height: 1.45;\n      color: #1f1f1f;\n      font-weight: 800;\n    }\n\n    .pw_filter_specs_item ul {\n      position: relative;\n      z-index: 1;\n      margin: 0;\n      padding-left: 18px;\n      font-size: 14px;\n      line-height: 1.62;\n      color: #333;\n    }\n\n    .pw_filter_specs_item li {\n      margin-bottom: 3px;\n    }\n\n    .pw_filter_primary {\n      background: linear-gradient(135deg, #036AFF 0%, #2088ff 100%);\n      border-color: #036AFF;\n    }\n\n    .pw_filter_primary span,\n    .pw_filter_primary strong,\n    .pw_filter_primary li {\n      color: #ffffff;\n    }\n\n    .pw_filter_primary span {\n      opacity: .88;\n    }\n\n    .pw_filter_soft {\n      background: #f4f9ff;\n      border-color: #cfe4ff;\n    }\n\n    .pw_filter_soft span {\n      color: #036AFF;\n    }\n\n    .pw_filter_options_wrap {\n      margin-top: 16px;\n      padding: 18px;\n      border-radius: 20px;\n      background: #ffffff;\n      border: 1px solid #dcecff;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_section_title {\n      margin: 0 0 14px;\n      font-size: 14px;\n      line-height: 1.3;\n      color: #1f1f1f;\n      font-weight: 800;\n      text-transform: uppercase;\n      letter-spacing: .45px;\n    }\n\n    .pw_filter_options_grid {\n      display: grid;\n      grid-template-columns: repeat(3, 1fr);\n      gap: 12px;\n    }\n\n    .pw_filter_option_card {\n      position: relative;\n      overflow: hidden;\n      border-radius: 18px;\n      border: 1px solid #dcecff;\n      background: linear-gradient(180deg, #f6fbff 0%, #ffffff 100%);\n      padding: 16px;\n      box-sizing: border-box;\n      transition: transform .32s ease, box-shadow .32s ease, border-color .32s ease;\n    }\n\n    .pw_filter_option_card:hover {\n      transform: translateY(-3px);\n      border-color: #b7d7ff;\n      box-shadow: 0 10px 24px rgba(3,106,255,.09);\n    }\n\n    .pw_filter_option_name {\n      margin: 0 0 8px;\n      font-size: 16px;\n      line-height: 1.35;\n      color: #111;\n      font-weight: 800;\n    }\n\n    .pw_filter_item_badge {\n      display: inline-block;\n      margin-bottom: 12px;\n      padding: 5px 9px;\n      border-radius: 999px;\n      background: #036AFF;\n      color: #ffffff;\n      font-size: 12px;\n      line-height: 1.2;\n      font-weight: 800;\n      letter-spacing: .2px;\n    }\n\n    .pw_filter_option_block {\n      margin-top: 12px;\n    }\n\n    .pw_filter_option_label {\n      display: block;\n      margin-bottom: 6px;\n      font-size: 11px;\n      line-height: 1.3;\n      color: #60758d;\n      text-transform: uppercase;\n      font-weight: 800;\n      letter-spacing: .35px;\n    }\n\n    .pw_filter_option_card ul {\n      margin: 0;\n      padding-left: 18px;\n      font-size: 13px;\n      line-height: 1.58;\n      color: #333;\n    }\n\n    .pw_filter_feature_tags {\n      display: flex;\n      flex-wrap: wrap;\n      gap: 7px;\n      margin-top: 8px;\n    }\n\n    .pw_filter_feature_tags em {\n      display: inline-block;\n      padding: 6px 9px;\n      border-radius: 999px;\n      background: #eef6ff;\n      color: #036AFF;\n      font-size: 12px;\n      line-height: 1.2;\n      font-style: normal;\n      font-weight: 800;\n    }\n\n    .pw_filter_notes_wrap {\n      margin-top: 16px;\n      padding: 18px;\n      border: 1px solid #dcecff;\n      border-radius: 20px;\n      background: rgba(255,255,255,.84);\n      box-sizing: border-box;\n    }\n\n    .pw_filter_notes_grid {\n      display: grid;\n      grid-template-columns: repeat(2, 1fr);\n      gap: 10px;\n    }\n\n    .pw_filter_note_item {\n      position: relative;\n      overflow: hidden;\n      display: flex;\n      gap: 10px;\n      padding: 13px 14px;\n      border-radius: 14px;\n      background: #ffffff;\n      border: 1px solid #edf3fb;\n      box-sizing: border-box;\n      transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;\n    }\n\n    .pw_filter_note_item::before {\n      content: \"\";\n      position: absolute;\n      left: 0;\n      top: 0;\n      width: 3px;\n      height: 100%;\n      background: #b9d8ff;\n      transition: width .3s ease, background .3s ease;\n    }\n\n    .pw_filter_note_item:hover {\n      transform: translateY(-2px);\n      border-color: #dcecff;\n      box-shadow: 0 8px 18px rgba(3,106,255,.08);\n    }\n\n    .pw_filter_note_item:hover::before {\n      width: 5px;\n      background: #036AFF;\n    }\n\n    .pw_filter_note_num {\n      position: relative;\n      z-index: 1;\n      min-width: 24px;\n      font-size: 12px;\n      line-height: 1.5;\n      color: #036AFF;\n      font-weight: 800;\n    }\n\n    .pw_filter_note_text {\n      position: relative;\n      z-index: 1;\n      margin: 0;\n      font-size: 13px;\n      line-height: 1.55;\n      color: #4f5f70;\n    }\n\n    .pw_filter_specs_note {\n      margin-top: 14px;\n      padding: 14px 16px;\n      border-radius: 14px;\n      background: #eef6ff;\n      border: 1px solid #dcecff;\n      font-size: 13px;\n      line-height: 1.6;\n      color: #4f5f70;\n      box-sizing: border-box;\n    }\n\n    @media (max-width: 768px) {\n      .pw_filter_specs_only {\n        padding: 0 14px;\n        margin: 22px auto;\n      }\n\n      .pw_filter_specs_panel {\n        padding: 16px;\n        border-radius: 20px;\n      }\n\n      .pw_filter_specs_grid,\n      .pw_filter_options_grid,\n      .pw_filter_notes_grid {\n        grid-template-columns: 1fr;\n      }\n\n      .pw_filter_specs_item,\n      .pw_filter_option_card {\n        padding: 15px;\n      }\n\n      .pw_filter_specs_item strong {\n        font-size: 14px;\n      }\n\n      .pw_filter_specs_item ul,\n      .pw_filter_option_card ul {\n        font-size: 13px;\n      }\n\n      .pw_filter_notes_wrap,\n      .pw_filter_options_wrap {\n        padding: 15px;\n      }\n\n      .pw_filter_note_item {\n        padding: 12px 13px;\n      }\n\n      .pw_filter_note_text {\n        font-size: 13px;\n      }\n    }\n  \u003c\/style\u003e\n\u003cdiv class=\"pw_filter_specs_only\"\u003e\n\u003cdiv class=\"pw_filter_specs_panel\"\u003e\n\u003cdiv class=\"pw_filter_specs_grid\"\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e \u003cstrong\u003eCore Filter\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n\u003cspan\u003eFiltration Stages\u003c\/span\u003e \u003cstrong\u003e3-Stage \/ 4-Stage\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n\u003cspan\u003eCompatibility\u003c\/span\u003e \u003cstrong\u003ePurewell K Series \u0026amp; SS Series Filter Systems\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n\u003cspan\u003ePackage Quantity\u003c\/span\u003e \u003cstrong\u003e1 Box \/ 2 Filters\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n\u003cspan\u003eFilter Life\u003c\/span\u003e \u003cstrong\u003eUp to 6,000 Gallons per Box\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n\u003cspan\u003eFlow Rate\u003c\/span\u003e \u003cstrong\u003eUp to 4 Gallons per Hour with 2 Filters Installed\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item\"\u003e\n\u003cspan\u003eUse For\u003c\/span\u003e \u003cstrong\u003eGravity Water Filter Systems\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item\"\u003e\n\u003cspan\u003eFilter Size\u003c\/span\u003e \u003cstrong\u003eApprox. 2.64 in × 8.66 in \/ Φ6.7 × 22 cm\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item\"\u003e\n\u003cspan\u003eBox Weight\u003c\/span\u003e \u003cstrong\u003eApprox. 1.32 lb Net \/ 1.46 lb Gross\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_options_wrap\"\u003e\n\u003cdiv class=\"pw_filter_section_title\"\u003eFiltration Options \u0026amp; Item Numbers\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_options_grid\"\u003e\n\u003cdiv class=\"pw_filter_option_card\"\u003e\n\u003ch3 class=\"pw_filter_option_name\"\u003e3-Stage Advanced\u003c\/h3\u003e\n\u003cdiv class=\"pw_filter_item_badge\"\u003eItem No. K8012\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eFilter Material\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eActivated Carbon\u003c\/li\u003e\n\u003cli\u003eSilver Ion\u003c\/li\u003e\n\u003cli\u003eHollow Fiber UF Membrane\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eKey Functions\u003c\/span\u003e\n\u003cdiv class=\"pw_filter_feature_tags\"\u003e\n\u003cem\u003e0.01 μm Pore Size\u003c\/em\u003e \u003cem\u003eRemoves Bacteria\u003c\/em\u003e \u003cem\u003eReduces Chlorine\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_card\"\u003e\n\u003ch3 class=\"pw_filter_option_name\"\u003e4-Stage Reduce Fluoride\u003c\/h3\u003e\n\u003cdiv class=\"pw_filter_item_badge\"\u003eItem No. K8014\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eFilter Material\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eActivated Carbon\u003c\/li\u003e\n\u003cli\u003eSilver Ion\u003c\/li\u003e\n\u003cli\u003eFluoride Reduction Material\u003c\/li\u003e\n\u003cli\u003eHollow Fiber UF Membrane\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eKey Functions\u003c\/span\u003e\n\u003cdiv class=\"pw_filter_feature_tags\"\u003e\n\u003cem\u003e0.01 μm Pore Size\u003c\/em\u003e \u003cem\u003eRemoves Bacteria\u003c\/em\u003e \u003cem\u003eReduces Chlorine\u003c\/em\u003e \u003cem\u003eReduces Fluoride\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_card\"\u003e\n\u003ch3 class=\"pw_filter_option_name\"\u003e4-Stage Raise PH Level\u003c\/h3\u003e\n\u003cdiv class=\"pw_filter_item_badge\"\u003eItem No. K8015\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eFilter Material\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eActivated Carbon\u003c\/li\u003e\n\u003cli\u003eSilver Ion\u003c\/li\u003e\n\u003cli\u003eAlkaline Material\u003c\/li\u003e\n\u003cli\u003eHollow Fiber UF Membrane\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eKey Functions\u003c\/span\u003e\n\u003cdiv class=\"pw_filter_feature_tags\"\u003e\n\u003cem\u003e0.01 μm Pore Size\u003c\/em\u003e \u003cem\u003eRemoves Bacteria\u003c\/em\u003e \u003cem\u003eReduces Chlorine\u003c\/em\u003e \u003cem\u003eRaises PH Level\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_notes_wrap\"\u003e\n\u003cdiv class=\"pw_filter_section_title\"\u003eUse Notes\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_notes_grid\"\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e01\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eChoose 3-Stage Advanced for everyday filtration with activated carbon, silver ion, and UF membrane filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e02\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eChoose 4-Stage Reduce Fluoride if you want added fluoride reduction in addition to the core filtration layers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e03\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eChoose 4-Stage Raise pH Level if you want core filtration with an added alkaline material layer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e04\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eDesigned for Purewell K Series and SS Series gravity water filter systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e05\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eAlso works as a replacement option for select ProOne Big+ \/ Big II Series and Berkey BB9-2 style systems, including Travel, Big, Royal, Imperial, Light, and Crown Berkey Series.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e06\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eFlush filters before first use and replace them when the rated capacity is reached or when water flow becomes noticeably slower.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_note\"\u003eNote: Filter life and flow rate may vary depending on source water quality, usage frequency, and maintenance conditions. Always check your system size and filter compatibility before purchase. Third-party brand and model names are used for compatibility reference only.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Purewell","offers":[{"title":"4-Stage Reduce Fluoride","offer_id":45828607475877,"sku":"PF-3-FL\/K8014","price":79.99,"currency_code":"USD","in_stock":false},{"title":"4-Stage Raise PH Level","offer_id":45828607508645,"sku":"PF-3-PH\/K8015","price":79.99,"currency_code":"USD","in_stock":false},{"title":"3-Stage Advanced","offer_id":45828607443109,"sku":"PF-3\/K8012","price":69.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/2788\/9317\/files\/K-Series-Carbon-Filters-Purewell-4046523.png?v=1787205646"},{"product_id":"k-series-carbon-filters-classic","title":"K Series Carbon Filters (Classic)","description":"\u003cdiv class=\"pw_filter_specs_only\"\u003e\n  \u003cstyle\u003e\n    .pw_filter_specs_only {\n      width: 100%;\n      max-width: 980px;\n      margin: 28px auto;\n      font-family: Arial, Helvetica, sans-serif;\n      color: #1f1f1f;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_specs_panel {\n      padding: 22px;\n      border-radius: 24px;\n      background: linear-gradient(135deg, #eef6ff 0%, #ffffff 52%, #f3f8ff 100%);\n      border: 1px solid #d9eaff;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_specs_grid {\n      display: grid;\n      grid-template-columns: repeat(3, 1fr);\n      gap: 12px;\n    }\n\n    .pw_filter_specs_item {\n      position: relative;\n      overflow: hidden;\n      border: 1px solid #e2edf8;\n      border-radius: 16px;\n      background: rgba(255,255,255,.88);\n      padding: 16px;\n      box-sizing: border-box;\n      transition: transform .32s ease, box-shadow .32s ease, border-color .32s ease;\n    }\n\n    .pw_filter_specs_item::before {\n      content: \"\";\n      position: absolute;\n      top: 0;\n      left: -70%;\n      width: 55%;\n      height: 100%;\n      background: linear-gradient(120deg, transparent, rgba(255,255,255,.75), transparent);\n      transform: skewX(-18deg);\n      transition: left .65s ease;\n      pointer-events: none;\n    }\n\n    .pw_filter_specs_item:hover {\n      border-color: #b7d7ff;\n      transform: translateY(-3px);\n      box-shadow: 0 10px 24px rgba(3,106,255,.09);\n    }\n\n    .pw_filter_specs_item:hover::before {\n      left: 120%;\n    }\n\n    .pw_filter_specs_item span {\n      position: relative;\n      z-index: 1;\n      display: block;\n      margin-bottom: 7px;\n      font-size: 12px;\n      line-height: 1.3;\n      color: #60758d;\n      text-transform: uppercase;\n      letter-spacing: .35px;\n      font-weight: 700;\n    }\n\n    .pw_filter_specs_item strong {\n      position: relative;\n      z-index: 1;\n      display: block;\n      font-size: 15px;\n      line-height: 1.45;\n      color: #1f1f1f;\n      font-weight: 800;\n    }\n\n    .pw_filter_primary {\n      background: linear-gradient(135deg, #036AFF 0%, #2088ff 100%);\n      border-color: #036AFF;\n    }\n\n    .pw_filter_primary span,\n    .pw_filter_primary strong {\n      color: #ffffff;\n    }\n\n    .pw_filter_primary span {\n      opacity: .88;\n    }\n\n    .pw_filter_soft {\n      background: #f4f9ff;\n      border-color: #cfe4ff;\n    }\n\n    .pw_filter_soft span {\n      color: #036AFF;\n    }\n\n    .pw_filter_options_wrap {\n      margin-top: 16px;\n      padding: 18px;\n      border-radius: 20px;\n      background: #ffffff;\n      border: 1px solid #dcecff;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_section_title {\n      margin: 0 0 14px;\n      font-size: 14px;\n      line-height: 1.3;\n      color: #1f1f1f;\n      font-weight: 800;\n      text-transform: uppercase;\n      letter-spacing: .45px;\n    }\n\n    .pw_filter_options_grid {\n      display: grid;\n      grid-template-columns: 1fr;\n      gap: 12px;\n    }\n\n    .pw_filter_option_card {\n      position: relative;\n      overflow: hidden;\n      border-radius: 18px;\n      border: 1px solid #dcecff;\n      background: linear-gradient(180deg, #f6fbff 0%, #ffffff 100%);\n      padding: 18px;\n      box-sizing: border-box;\n      transition: transform .32s ease, box-shadow .32s ease, border-color .32s ease;\n    }\n\n    .pw_filter_option_card:hover {\n      transform: translateY(-3px);\n      border-color: #b7d7ff;\n      box-shadow: 0 10px 24px rgba(3,106,255,.09);\n    }\n\n    .pw_filter_option_top {\n      display: flex;\n      flex-wrap: wrap;\n      align-items: center;\n      justify-content: space-between;\n      gap: 10px;\n      margin-bottom: 12px;\n    }\n\n    .pw_filter_option_name {\n      margin: 0;\n      font-size: 18px;\n      line-height: 1.35;\n      color: #111;\n      font-weight: 800;\n    }\n\n    .pw_filter_item_badge {\n      display: inline-block;\n      padding: 6px 10px;\n      border-radius: 999px;\n      background: #036AFF;\n      color: #ffffff;\n      font-size: 12px;\n      line-height: 1.2;\n      font-weight: 800;\n      letter-spacing: .2px;\n    }\n\n    .pw_filter_option_columns {\n      display: grid;\n      grid-template-columns: repeat(2, 1fr);\n      gap: 16px;\n    }\n\n    .pw_filter_option_block {\n      margin-top: 6px;\n    }\n\n    .pw_filter_option_label {\n      display: block;\n      margin-bottom: 8px;\n      font-size: 11px;\n      line-height: 1.3;\n      color: #60758d;\n      text-transform: uppercase;\n      font-weight: 800;\n      letter-spacing: .35px;\n    }\n\n    .pw_filter_option_card ul {\n      margin: 0;\n      padding-left: 18px;\n      font-size: 13px;\n      line-height: 1.58;\n      color: #333;\n    }\n\n    .pw_filter_feature_tags {\n      display: flex;\n      flex-wrap: wrap;\n      gap: 7px;\n      margin-top: 8px;\n    }\n\n    .pw_filter_feature_tags em {\n      display: inline-block;\n      padding: 6px 9px;\n      border-radius: 999px;\n      background: #eef6ff;\n      color: #036AFF;\n      font-size: 12px;\n      line-height: 1.2;\n      font-style: normal;\n      font-weight: 800;\n    }\n\n    .pw_filter_notes_wrap {\n      margin-top: 16px;\n      padding: 18px;\n      border: 1px solid #dcecff;\n      border-radius: 20px;\n      background: rgba(255,255,255,.84);\n      box-sizing: border-box;\n    }\n\n    .pw_filter_notes_grid {\n      display: grid;\n      grid-template-columns: repeat(2, 1fr);\n      gap: 10px;\n    }\n\n    .pw_filter_note_item {\n      position: relative;\n      overflow: hidden;\n      display: flex;\n      gap: 10px;\n      padding: 13px 14px;\n      border-radius: 14px;\n      background: #ffffff;\n      border: 1px solid #edf3fb;\n      box-sizing: border-box;\n      transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;\n    }\n\n    .pw_filter_note_item::before {\n      content: \"\";\n      position: absolute;\n      left: 0;\n      top: 0;\n      width: 3px;\n      height: 100%;\n      background: #b9d8ff;\n      transition: width .3s ease, background .3s ease;\n    }\n\n    .pw_filter_note_item:hover {\n      transform: translateY(-2px);\n      border-color: #dcecff;\n      box-shadow: 0 8px 18px rgba(3,106,255,.08);\n    }\n\n    .pw_filter_note_item:hover::before {\n      width: 5px;\n      background: #036AFF;\n    }\n\n    .pw_filter_note_num {\n      position: relative;\n      z-index: 1;\n      min-width: 24px;\n      font-size: 12px;\n      line-height: 1.5;\n      color: #036AFF;\n      font-weight: 800;\n    }\n\n    .pw_filter_note_text {\n      position: relative;\n      z-index: 1;\n      margin: 0;\n      font-size: 13px;\n      line-height: 1.55;\n      color: #4f5f70;\n    }\n\n    .pw_filter_specs_note {\n      margin-top: 14px;\n      padding: 14px 16px;\n      border-radius: 14px;\n      background: #eef6ff;\n      border: 1px solid #dcecff;\n      font-size: 13px;\n      line-height: 1.6;\n      color: #4f5f70;\n      box-sizing: border-box;\n    }\n\n    @media (max-width: 768px) {\n      .pw_filter_specs_only {\n        padding: 0 14px;\n        margin: 22px auto;\n      }\n\n      .pw_filter_specs_panel {\n        padding: 16px;\n        border-radius: 20px;\n      }\n\n      .pw_filter_specs_grid,\n      .pw_filter_option_columns,\n      .pw_filter_notes_grid {\n        grid-template-columns: 1fr;\n      }\n\n      .pw_filter_specs_item,\n      .pw_filter_option_card {\n        padding: 15px;\n      }\n\n      .pw_filter_specs_item strong {\n        font-size: 14px;\n      }\n\n      .pw_filter_option_card ul {\n        font-size: 13px;\n      }\n\n      .pw_filter_notes_wrap,\n      .pw_filter_options_wrap {\n        padding: 15px;\n      }\n\n      .pw_filter_note_item {\n        padding: 12px 13px;\n      }\n\n      .pw_filter_note_text {\n        font-size: 13px;\n      }\n    }\n  \u003c\/style\u003e\n\n  \u003cdiv class=\"pw_filter_specs_panel\"\u003e\n    \u003cdiv class=\"pw_filter_specs_grid\"\u003e\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n        \u003cspan\u003eProduct Type\u003c\/span\u003e\n        \u003cstrong\u003eCore Filter\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n        \u003cspan\u003eFiltration Stage\u003c\/span\u003e\n        \u003cstrong\u003e2-Stage Advanced\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n        \u003cspan\u003eCompatibility\u003c\/span\u003e\n        \u003cstrong\u003ePurewell K Series \u0026amp; SS Series Filter Systems\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n        \u003cspan\u003ePackage Quantity\u003c\/span\u003e\n        \u003cstrong\u003e1 Box \/ 2 Filters\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n        \u003cspan\u003eFilter Life\u003c\/span\u003e\n        \u003cstrong\u003eUp to 6,000 Gallons per Box\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n        \u003cspan\u003eFlow Rate\u003c\/span\u003e\n        \u003cstrong\u003eUp to 4 Gallons per Hour with 2 Filters Installed\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item\"\u003e\n        \u003cspan\u003eUse For\u003c\/span\u003e\n        \u003cstrong\u003eGravity Water Filter Systems\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item\"\u003e\n        \u003cspan\u003eFilter Size\u003c\/span\u003e\n        \u003cstrong\u003eApprox. 2.20 in × 9.84 in \/ Φ5.6 × 25 cm\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item\"\u003e\n        \u003cspan\u003eBox Weight\u003c\/span\u003e\n        \u003cstrong\u003eApprox. 1.54 lb Net \/ 1.70 lb Gross\u003c\/strong\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"pw_filter_options_wrap\"\u003e\n      \u003cdiv class=\"pw_filter_section_title\"\u003eFiltration Option \u0026amp; Item Number\u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_options_grid\"\u003e\n        \u003cdiv class=\"pw_filter_option_card\"\u003e\n          \u003cdiv class=\"pw_filter_option_top\"\u003e\n            \u003ch3 class=\"pw_filter_option_name\"\u003e2-Stage Advanced\u003c\/h3\u003e\n            \u003cdiv class=\"pw_filter_item_badge\"\u003eItem No. K8005\u003c\/div\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"pw_filter_option_columns\"\u003e\n            \u003cdiv class=\"pw_filter_option_block\"\u003e\n              \u003cspan class=\"pw_filter_option_label\"\u003eFilter Material\u003c\/span\u003e\n              \u003cul\u003e\n                \u003cli\u003eActivated Carbon\u003c\/li\u003e\n                \u003cli\u003eSilver Ion\u003c\/li\u003e\n              \u003c\/ul\u003e\n            \u003c\/div\u003e\n\n            \u003cdiv class=\"pw_filter_option_block\"\u003e\n              \u003cspan class=\"pw_filter_option_label\"\u003eKey Functions\u003c\/span\u003e\n              \u003cdiv class=\"pw_filter_feature_tags\"\u003e\n                \u003cem\u003eRemoves Bacteria\u003c\/em\u003e\n                \u003cem\u003eReduces Chlorine\u003c\/em\u003e\n              \u003c\/div\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"pw_filter_notes_wrap\"\u003e\n      \u003cdiv class=\"pw_filter_section_title\"\u003eUse Notes\u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_notes_grid\"\u003e\n        \u003cdiv class=\"pw_filter_note_item\"\u003e\n          \u003cdiv class=\"pw_filter_note_num\"\u003e01\u003c\/div\u003e\n          \u003cp class=\"pw_filter_note_text\"\u003eChoose 2-Stage Advanced for everyday gravity water filtration with activated carbon and silver ion media.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"pw_filter_note_item\"\u003e\n          \u003cdiv class=\"pw_filter_note_num\"\u003e02\u003c\/div\u003e\n          \u003cp class=\"pw_filter_note_text\"\u003eDesigned for Purewell K Series and SS Series gravity water filter systems.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"pw_filter_note_item\"\u003e\n          \u003cdiv class=\"pw_filter_note_num\"\u003e03\u003c\/div\u003e\n          \u003cp class=\"pw_filter_note_text\"\u003eAlso works as a replacement option for Black Berkey Elements and Travel, Light, Big, Royal, Imperial, and Crown Berkey Series systems.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"pw_filter_note_item\"\u003e\n          \u003cdiv class=\"pw_filter_note_num\"\u003e04\u003c\/div\u003e\n          \u003cp class=\"pw_filter_note_text\"\u003eEach box includes 2 filters. Install both filters together for the listed flow rate and rated filter life.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"pw_filter_note_item\"\u003e\n          \u003cdiv class=\"pw_filter_note_num\"\u003e05\u003c\/div\u003e\n          \u003cp class=\"pw_filter_note_text\"\u003eFlush filters before first use according to the product instructions.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"pw_filter_note_item\"\u003e\n          \u003cdiv class=\"pw_filter_note_num\"\u003e06\u003c\/div\u003e\n          \u003cp class=\"pw_filter_note_text\"\u003eReplace the filters when the rated capacity is reached or when water flow becomes noticeably slower.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_note\"\u003e\n        Note: Filter life and flow rate may vary depending on source water quality, usage frequency, and maintenance conditions. Always check filter size and system compatibility before purchase. Third-party brand and model names are used for compatibility reference only.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Purewell","offers":[{"title":"2-Stage Advanced","offer_id":45830451364005,"sku":"PF-2\/K8005","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/2788\/9317\/files\/K-Series-Carbon-Filters-_Berlkey_-Purewell-40472434.jpg?v=1783419236"},{"product_id":"k-series-carbon-filters-pro","title":"K Series Carbon Filters (Pro)","description":"\u003cstyle\u003e\n    .pw_filter_specs_only {\n      width: 100%;\n      max-width: 980px;\n      margin: 28px auto;\n      font-family: Arial, Helvetica, sans-serif;\n      color: #1f1f1f;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_specs_panel {\n      padding: 22px;\n      border-radius: 24px;\n      background: linear-gradient(135deg, #eef6ff 0%, #ffffff 52%, #f3f8ff 100%);\n      border: 1px solid #d9eaff;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_specs_grid {\n      display: grid;\n      grid-template-columns: repeat(3, 1fr);\n      gap: 12px;\n    }\n\n    .pw_filter_specs_item {\n      position: relative;\n      overflow: hidden;\n      border: 1px solid #e2edf8;\n      border-radius: 16px;\n      background: rgba(255,255,255,.88);\n      padding: 16px;\n      box-sizing: border-box;\n      transition: transform .32s ease, box-shadow .32s ease, border-color .32s ease;\n    }\n\n    .pw_filter_specs_item::before {\n      content: \"\";\n      position: absolute;\n      top: 0;\n      left: -70%;\n      width: 55%;\n      height: 100%;\n      background: linear-gradient(120deg, transparent, rgba(255,255,255,.75), transparent);\n      transform: skewX(-18deg);\n      transition: left .65s ease;\n      pointer-events: none;\n    }\n\n    .pw_filter_specs_item:hover {\n      border-color: #b7d7ff;\n      transform: translateY(-3px);\n      box-shadow: 0 10px 24px rgba(3,106,255,.09);\n    }\n\n    .pw_filter_specs_item:hover::before {\n      left: 120%;\n    }\n\n    .pw_filter_specs_item span {\n      position: relative;\n      z-index: 1;\n      display: block;\n      margin-bottom: 7px;\n      font-size: 12px;\n      line-height: 1.3;\n      color: #60758d;\n      text-transform: uppercase;\n      letter-spacing: .35px;\n      font-weight: 700;\n    }\n\n    .pw_filter_specs_item strong {\n      position: relative;\n      z-index: 1;\n      display: block;\n      font-size: 15px;\n      line-height: 1.45;\n      color: #1f1f1f;\n      font-weight: 800;\n    }\n\n    .pw_filter_primary {\n      background: linear-gradient(135deg, #036AFF 0%, #2088ff 100%);\n      border-color: #036AFF;\n    }\n\n    .pw_filter_primary span,\n    .pw_filter_primary strong {\n      color: #ffffff;\n    }\n\n    .pw_filter_primary span {\n      opacity: .88;\n    }\n\n    .pw_filter_soft {\n      background: #f4f9ff;\n      border-color: #cfe4ff;\n    }\n\n    .pw_filter_soft span {\n      color: #036AFF;\n    }\n\n    .pw_filter_options_wrap {\n      margin-top: 16px;\n      padding: 18px;\n      border-radius: 20px;\n      background: #ffffff;\n      border: 1px solid #dcecff;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_section_title {\n      margin: 0 0 14px;\n      font-size: 14px;\n      line-height: 1.3;\n      color: #1f1f1f;\n      font-weight: 800;\n      text-transform: uppercase;\n      letter-spacing: .45px;\n    }\n\n    .pw_filter_options_grid {\n      display: grid;\n      grid-template-columns: repeat(3, 1fr);\n      gap: 12px;\n    }\n\n    .pw_filter_option_card {\n      position: relative;\n      overflow: hidden;\n      border-radius: 18px;\n      border: 1px solid #dcecff;\n      background: linear-gradient(180deg, #f6fbff 0%, #ffffff 100%);\n      padding: 16px;\n      box-sizing: border-box;\n      transition: transform .32s ease, box-shadow .32s ease, border-color .32s ease;\n    }\n\n    .pw_filter_option_card:hover {\n      transform: translateY(-3px);\n      border-color: #b7d7ff;\n      box-shadow: 0 10px 24px rgba(3,106,255,.09);\n    }\n\n    .pw_filter_option_name {\n      margin: 0 0 8px;\n      font-size: 16px;\n      line-height: 1.35;\n      color: #111;\n      font-weight: 800;\n    }\n\n    .pw_filter_item_badge {\n      display: inline-block;\n      margin-bottom: 12px;\n      padding: 5px 9px;\n      border-radius: 999px;\n      background: #036AFF;\n      color: #ffffff;\n      font-size: 12px;\n      line-height: 1.2;\n      font-weight: 800;\n      letter-spacing: .2px;\n    }\n\n    .pw_filter_option_block {\n      margin-top: 12px;\n    }\n\n    .pw_filter_option_label {\n      display: block;\n      margin-bottom: 6px;\n      font-size: 11px;\n      line-height: 1.3;\n      color: #60758d;\n      text-transform: uppercase;\n      font-weight: 800;\n      letter-spacing: .35px;\n    }\n\n    .pw_filter_option_card ul {\n      margin: 0;\n      padding-left: 18px;\n      font-size: 13px;\n      line-height: 1.58;\n      color: #333;\n    }\n\n    .pw_filter_feature_tags {\n      display: flex;\n      flex-wrap: wrap;\n      gap: 7px;\n      margin-top: 8px;\n    }\n\n    .pw_filter_feature_tags em {\n      display: inline-block;\n      padding: 6px 9px;\n      border-radius: 999px;\n      background: #eef6ff;\n      color: #036AFF;\n      font-size: 12px;\n      line-height: 1.2;\n      font-style: normal;\n      font-weight: 800;\n    }\n\n    .pw_filter_notes_wrap {\n      margin-top: 16px;\n      padding: 18px;\n      border: 1px solid #dcecff;\n      border-radius: 20px;\n      background: rgba(255,255,255,.84);\n      box-sizing: border-box;\n    }\n\n    .pw_filter_notes_grid {\n      display: grid;\n      grid-template-columns: repeat(2, 1fr);\n      gap: 10px;\n    }\n\n    .pw_filter_note_item {\n      position: relative;\n      overflow: hidden;\n      display: flex;\n      gap: 10px;\n      padding: 13px 14px;\n      border-radius: 14px;\n      background: #ffffff;\n      border: 1px solid #edf3fb;\n      box-sizing: border-box;\n      transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;\n    }\n\n    .pw_filter_note_item::before {\n      content: \"\";\n      position: absolute;\n      left: 0;\n      top: 0;\n      width: 3px;\n      height: 100%;\n      background: #b9d8ff;\n      transition: width .3s ease, background .3s ease;\n    }\n\n    .pw_filter_note_item:hover {\n      transform: translateY(-2px);\n      border-color: #dcecff;\n      box-shadow: 0 8px 18px rgba(3,106,255,.08);\n    }\n\n    .pw_filter_note_item:hover::before {\n      width: 5px;\n      background: #036AFF;\n    }\n\n    .pw_filter_note_num {\n      position: relative;\n      z-index: 1;\n      min-width: 24px;\n      font-size: 12px;\n      line-height: 1.5;\n      color: #036AFF;\n      font-weight: 800;\n    }\n\n    .pw_filter_note_text {\n      position: relative;\n      z-index: 1;\n      margin: 0;\n      font-size: 13px;\n      line-height: 1.55;\n      color: #4f5f70;\n    }\n\n    .pw_filter_specs_note {\n      margin-top: 14px;\n      padding: 14px 16px;\n      border-radius: 14px;\n      background: #eef6ff;\n      border: 1px solid #dcecff;\n      font-size: 13px;\n      line-height: 1.6;\n      color: #4f5f70;\n      box-sizing: border-box;\n    }\n\n    @media (max-width: 768px) {\n      .pw_filter_specs_only {\n        padding: 0 14px;\n        margin: 22px auto;\n      }\n\n      .pw_filter_specs_panel {\n        padding: 16px;\n        border-radius: 20px;\n      }\n\n      .pw_filter_specs_grid,\n      .pw_filter_options_grid,\n      .pw_filter_notes_grid {\n        grid-template-columns: 1fr;\n      }\n\n      .pw_filter_specs_item,\n      .pw_filter_option_card {\n        padding: 15px;\n      }\n\n      .pw_filter_specs_item strong {\n        font-size: 14px;\n      }\n\n      .pw_filter_option_card ul {\n        font-size: 13px;\n      }\n\n      .pw_filter_notes_wrap,\n      .pw_filter_options_wrap {\n        padding: 15px;\n      }\n\n      .pw_filter_note_item {\n        padding: 12px 13px;\n      }\n\n      .pw_filter_note_text {\n        font-size: 13px;\n      }\n    }\n  \u003c\/style\u003e\n\u003cdiv class=\"pw_filter_specs_only\"\u003e\n\u003cdiv class=\"pw_filter_specs_panel\"\u003e\n\u003cdiv class=\"pw_filter_specs_grid\"\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e \u003cstrong\u003eCore Filter\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n\u003cspan\u003eFiltration Stages\u003c\/span\u003e \u003cstrong\u003e3-Stage \/ 4-Stage\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n\u003cspan\u003eCompatibility\u003c\/span\u003e \u003cstrong\u003ePurewell K Series \u0026amp; SS Series Filter Systems\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n\u003cspan\u003ePackage Quantity\u003c\/span\u003e \u003cstrong\u003e1 Box \/ 2 Filters\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n\u003cspan\u003eFilter Life\u003c\/span\u003e \u003cstrong\u003eUp to 10,000 Gallons per Box\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n\u003cspan\u003eFlow Rate\u003c\/span\u003e \u003cstrong\u003eApprox. 1.9 Gallons per Hour with 2 Filters Installed\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item\"\u003e\n\u003cspan\u003eUse For\u003c\/span\u003e \u003cstrong\u003eGravity Water Filter Systems\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item\"\u003e\n\u003cspan\u003eFilter Size\u003c\/span\u003e \u003cstrong\u003eApprox. 3.27 in × 6.69 in \/ Φ8.3 × 17 cm\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_item\"\u003e\n\u003cspan\u003eBox Weight\u003c\/span\u003e \u003cstrong\u003eApprox. 2.03 lb Net \/ 2.14 lb Gross\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_options_wrap\"\u003e\n\u003cdiv class=\"pw_filter_section_title\"\u003eFiltration Options \u0026amp; Item Numbers\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_options_grid\"\u003e\n\u003cdiv class=\"pw_filter_option_card\"\u003e\n\u003ch3 class=\"pw_filter_option_name\"\u003e3-Stage Advanced\u003c\/h3\u003e\n\u003cdiv class=\"pw_filter_item_badge\"\u003eItem No. K8011\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eFilter Material\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eActivated Carbon\u003c\/li\u003e\n\u003cli\u003eSilver Ion\u003c\/li\u003e\n\u003cli\u003eHollow Fiber UF Membrane\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eKey Functions\u003c\/span\u003e\n\u003cdiv class=\"pw_filter_feature_tags\"\u003e\n\u003cem\u003e0.01 μm Pore Size\u003c\/em\u003e \u003cem\u003eRemoves Bacteria\u003c\/em\u003e \u003cem\u003eReduces Chlorine\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_card\"\u003e\n\u003ch3 class=\"pw_filter_option_name\"\u003e4-Stage Reduce Fluoride\u003c\/h3\u003e\n\u003cdiv class=\"pw_filter_item_badge\"\u003eItem No. K8016\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eFilter Material\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eActivated Carbon\u003c\/li\u003e\n\u003cli\u003eSilver Ion\u003c\/li\u003e\n\u003cli\u003eFluoride Reduction Material\u003c\/li\u003e\n\u003cli\u003eHollow Fiber UF Membrane\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eKey Functions\u003c\/span\u003e\n\u003cdiv class=\"pw_filter_feature_tags\"\u003e\n\u003cem\u003e0.01 μm Pore Size\u003c\/em\u003e \u003cem\u003eRemoves Bacteria\u003c\/em\u003e \u003cem\u003eReduces Chlorine\u003c\/em\u003e \u003cem\u003eReduces Fluoride\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_card\"\u003e\n\u003ch3 class=\"pw_filter_option_name\"\u003e4-Stage Raise PH Level\u003c\/h3\u003e\n\u003cdiv class=\"pw_filter_item_badge\"\u003eItem No. K8017\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eFilter Material\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eActivated Carbon\u003c\/li\u003e\n\u003cli\u003eSilver Ion\u003c\/li\u003e\n\u003cli\u003eAlkaline Material\u003c\/li\u003e\n\u003cli\u003eHollow Fiber UF Membrane\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_option_block\"\u003e\n\u003cspan class=\"pw_filter_option_label\"\u003eKey Functions\u003c\/span\u003e\n\u003cdiv class=\"pw_filter_feature_tags\"\u003e\n\u003cem\u003e0.01 μm Pore Size\u003c\/em\u003e \u003cem\u003eRemoves Bacteria\u003c\/em\u003e \u003cem\u003eReduces Chlorine\u003c\/em\u003e \u003cem\u003eRaises PH Level\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_notes_wrap\"\u003e\n\u003cdiv class=\"pw_filter_section_title\"\u003eUse Notes\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_notes_grid\"\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e01\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eChoose 3-Stage Advanced for everyday filtration with activated carbon, silver ion, and UF membrane filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e02\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eChoose 4-Stage Reduce Fluoride if you want added fluoride reduction in addition to the core filtration layers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e03\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eChoose 4-Stage Raise pH Level if you want core filtration with an added alkaline material layer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e04\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eDesigned for Purewell K Series and SS Series gravity water filter systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e05\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eAlso works as a replacement option for select ProOne Big+ \/ Big II Series and Berkey BB9-2 style systems, including Travel, Big, Royal, Imperial, Light, and Crown Berkey Series.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_note_item\"\u003e\n\u003cdiv class=\"pw_filter_note_num\"\u003e06\u003c\/div\u003e\n\u003cp class=\"pw_filter_note_text\"\u003eFlush filters before first use and replace them when the rated capacity is reached or when water flow becomes noticeably slower.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw_filter_specs_note\"\u003eNote: Filter life and flow rate may vary depending on source water quality, usage frequency, and maintenance conditions. Always check your system size and filter compatibility before purchase. Third-party brand and model names are used for compatibility reference only.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Purewell","offers":[{"title":"3-Stage Advanced","offer_id":45830473908389,"sku":"PF-1\/K8011","price":79.99,"currency_code":"USD","in_stock":true},{"title":"4-Stage Reduce Fluoride","offer_id":45830473941157,"sku":"PF-1-FL\/K8016","price":89.99,"currency_code":"USD","in_stock":false},{"title":"4-Stage Raise PH Level","offer_id":45830473973925,"sku":"PF-1-PH\/K8017","price":89.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/2788\/9317\/files\/K-Series-Carbon-Filters_Pro_-Purewell-40468679.webp?v=1783417875"},{"product_id":"k-series-ceramic-filters","title":"K Series Ceramic Filters","description":"\u003cdiv class=\"pw_filter_specs_only\"\u003e\n  \u003cstyle\u003e\n    .pw_filter_specs_only {\n      width: 100%;\n      max-width: 980px;\n      margin: 28px auto;\n      font-family: Arial, Helvetica, sans-serif;\n      color: #1f1f1f;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_specs_panel {\n      padding: 22px;\n      border-radius: 24px;\n      background: linear-gradient(135deg, #eef6ff 0%, #ffffff 52%, #f3f8ff 100%);\n      border: 1px solid #d9eaff;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_specs_grid {\n      display: grid;\n      grid-template-columns: repeat(3, 1fr);\n      gap: 12px;\n    }\n\n    .pw_filter_specs_item {\n      position: relative;\n      overflow: hidden;\n      border: 1px solid #e2edf8;\n      border-radius: 16px;\n      background: rgba(255,255,255,.88);\n      padding: 16px;\n      box-sizing: border-box;\n      transition: transform .32s ease, box-shadow .32s ease, border-color .32s ease;\n    }\n\n    .pw_filter_specs_item::before {\n      content: \"\";\n      position: absolute;\n      top: 0;\n      left: -70%;\n      width: 55%;\n      height: 100%;\n      background: linear-gradient(120deg, transparent, rgba(255,255,255,.75), transparent);\n      transform: skewX(-18deg);\n      transition: left .65s ease;\n      pointer-events: none;\n    }\n\n    .pw_filter_specs_item:hover {\n      border-color: #b7d7ff;\n      transform: translateY(-3px);\n      box-shadow: 0 10px 24px rgba(3,106,255,.09);\n    }\n\n    .pw_filter_specs_item:hover::before {\n      left: 120%;\n    }\n\n    .pw_filter_specs_item span {\n      position: relative;\n      z-index: 1;\n      display: block;\n      margin-bottom: 7px;\n      font-size: 12px;\n      line-height: 1.3;\n      color: #60758d;\n      text-transform: uppercase;\n      letter-spacing: .35px;\n      font-weight: 700;\n    }\n\n    .pw_filter_specs_item strong {\n      position: relative;\n      z-index: 1;\n      display: block;\n      font-size: 15px;\n      line-height: 1.45;\n      color: #1f1f1f;\n      font-weight: 800;\n    }\n\n    .pw_filter_primary {\n      background: linear-gradient(135deg, #036AFF 0%, #2088ff 100%);\n      border-color: #036AFF;\n    }\n\n    .pw_filter_primary span,\n    .pw_filter_primary strong {\n      color: #ffffff;\n    }\n\n    .pw_filter_primary span {\n      opacity: .88;\n    }\n\n    .pw_filter_soft {\n      background: #f4f9ff;\n      border-color: #cfe4ff;\n    }\n\n    .pw_filter_soft span {\n      color: #036AFF;\n    }\n\n    .pw_filter_options_wrap {\n      margin-top: 16px;\n      padding: 18px;\n      border-radius: 20px;\n      background: #ffffff;\n      border: 1px solid #dcecff;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_section_title {\n      margin: 0 0 14px;\n      font-size: 14px;\n      line-height: 1.3;\n      color: #1f1f1f;\n      font-weight: 800;\n      text-transform: uppercase;\n      letter-spacing: .45px;\n    }\n\n    .pw_filter_options_grid {\n      display: grid;\n      grid-template-columns: repeat(2, 1fr);\n      gap: 12px;\n    }\n\n    .pw_filter_option_card {\n      position: relative;\n      overflow: hidden;\n      border-radius: 18px;\n      border: 1px solid #dcecff;\n      background: linear-gradient(180deg, #f6fbff 0%, #ffffff 100%);\n      padding: 18px;\n      box-sizing: border-box;\n      transition: transform .32s ease, box-shadow .32s ease, border-color .32s ease;\n    }\n\n    .pw_filter_option_card:hover {\n      transform: translateY(-3px);\n      border-color: #b7d7ff;\n      box-shadow: 0 10px 24px rgba(3,106,255,.09);\n    }\n\n    .pw_filter_option_top {\n      display: flex;\n      flex-wrap: wrap;\n      align-items: center;\n      justify-content: space-between;\n      gap: 10px;\n      margin-bottom: 12px;\n    }\n\n    .pw_filter_option_name {\n      margin: 0;\n      font-size: 18px;\n      line-height: 1.35;\n      color: #111;\n      font-weight: 800;\n    }\n\n    .pw_filter_item_badge {\n      display: inline-block;\n      padding: 6px 10px;\n      border-radius: 999px;\n      background: #036AFF;\n      color: #ffffff;\n      font-size: 12px;\n      line-height: 1.2;\n      font-weight: 800;\n      letter-spacing: .2px;\n    }\n\n    .pw_filter_option_block {\n      margin-top: 14px;\n    }\n\n    .pw_filter_option_label {\n      display: block;\n      margin-bottom: 8px;\n      font-size: 11px;\n      line-height: 1.3;\n      color: #60758d;\n      text-transform: uppercase;\n      font-weight: 800;\n      letter-spacing: .35px;\n    }\n\n    .pw_filter_option_card ul {\n      margin: 0;\n      padding-left: 18px;\n      font-size: 13px;\n      line-height: 1.58;\n      color: #333;\n    }\n\n    .pw_filter_feature_tags {\n      display: flex;\n      flex-wrap: wrap;\n      gap: 7px;\n      margin-top: 8px;\n    }\n\n    .pw_filter_feature_tags em {\n      display: inline-block;\n      padding: 6px 9px;\n      border-radius: 999px;\n      background: #eef6ff;\n      color: #036AFF;\n      font-size: 12px;\n      line-height: 1.2;\n      font-style: normal;\n      font-weight: 800;\n    }\n\n    .pw_filter_perf_grid {\n      display: grid;\n      grid-template-columns: 1fr;\n      gap: 8px;\n      margin-top: 10px;\n    }\n\n    .pw_filter_perf_item {\n      padding: 10px 12px;\n      border-radius: 12px;\n      background: #f4f9ff;\n      border: 1px solid #e2edf8;\n      box-sizing: border-box;\n    }\n\n    .pw_filter_perf_item span {\n      display: block;\n      margin-bottom: 4px;\n      font-size: 11px;\n      line-height: 1.3;\n      color: #60758d;\n      text-transform: uppercase;\n      font-weight: 800;\n      letter-spacing: .35px;\n    }\n\n    .pw_filter_perf_item strong {\n      display: block;\n      font-size: 13px;\n      line-height: 1.45;\n      color: #1f1f1f;\n      font-weight: 800;\n    }\n\n    .pw_filter_notes_wrap {\n      margin-top: 16px;\n      padding: 18px;\n      border: 1px solid #dcecff;\n      border-radius: 20px;\n      background: rgba(255,255,255,.84);\n      box-sizing: border-box;\n    }\n\n    .pw_filter_notes_grid {\n      display: grid;\n      grid-template-columns: repeat(2, 1fr);\n      gap: 10px;\n    }\n\n    .pw_filter_note_item {\n      position: relative;\n      overflow: hidden;\n      display: flex;\n      gap: 10px;\n      padding: 13px 14px;\n      border-radius: 14px;\n      background: #ffffff;\n      border: 1px solid #edf3fb;\n      box-sizing: border-box;\n      transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;\n    }\n\n    .pw_filter_note_item::before {\n      content: \"\";\n      position: absolute;\n      left: 0;\n      top: 0;\n      width: 3px;\n      height: 100%;\n      background: #b9d8ff;\n      transition: width .3s ease, background .3s ease;\n    }\n\n    .pw_filter_note_item:hover {\n      transform: translateY(-2px);\n      border-color: #dcecff;\n      box-shadow: 0 8px 18px rgba(3,106,255,.08);\n    }\n\n    .pw_filter_note_item:hover::before {\n      width: 5px;\n      background: #036AFF;\n    }\n\n    .pw_filter_note_num {\n      position: relative;\n      z-index: 1;\n      min-width: 24px;\n      font-size: 12px;\n      line-height: 1.5;\n      color: #036AFF;\n      font-weight: 800;\n    }\n\n    .pw_filter_note_text {\n      position: relative;\n      z-index: 1;\n      margin: 0;\n      font-size: 13px;\n      line-height: 1.55;\n      color: #4f5f70;\n    }\n\n    .pw_filter_specs_note {\n      margin-top: 14px;\n      padding: 14px 16px;\n      border-radius: 14px;\n      background: #eef6ff;\n      border: 1px solid #dcecff;\n      font-size: 13px;\n      line-height: 1.6;\n      color: #4f5f70;\n      box-sizing: border-box;\n    }\n\n    @media (max-width: 768px) {\n      .pw_filter_specs_only {\n        padding: 0 14px;\n        margin: 22px auto;\n      }\n\n      .pw_filter_specs_panel {\n        padding: 16px;\n        border-radius: 20px;\n      }\n\n      .pw_filter_specs_grid,\n      .pw_filter_options_grid,\n      .pw_filter_notes_grid {\n        grid-template-columns: 1fr;\n      }\n\n      .pw_filter_specs_item,\n      .pw_filter_option_card {\n        padding: 15px;\n      }\n\n      .pw_filter_specs_item strong {\n        font-size: 14px;\n      }\n\n      .pw_filter_option_card ul {\n        font-size: 13px;\n      }\n\n      .pw_filter_notes_wrap,\n      .pw_filter_options_wrap {\n        padding: 15px;\n      }\n\n      .pw_filter_note_item {\n        padding: 12px 13px;\n      }\n\n      .pw_filter_note_text {\n        font-size: 13px;\n      }\n    }\n  \u003c\/style\u003e\n\n  \u003cdiv class=\"pw_filter_specs_panel\"\u003e\n    \u003cdiv class=\"pw_filter_specs_grid\"\u003e\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n        \u003cspan\u003eProduct Type\u003c\/span\u003e\n        \u003cstrong\u003eCore Filter\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n        \u003cspan\u003eFiltration Stages\u003c\/span\u003e\n        \u003cstrong\u003e3-Stage \/ 4-Stage\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n        \u003cspan\u003eCompatibility\u003c\/span\u003e\n        \u003cstrong\u003ePurewell K Series \u0026amp; SS Series Filter Systems\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n        \u003cspan\u003ePackage Quantity\u003c\/span\u003e\n        \u003cstrong\u003e1 Box \/ 2 Filters\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n        \u003cspan\u003eFilter Life\u003c\/span\u003e\n        \u003cstrong\u003eUp to 10,000–15,000 Gallons per Box\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_soft\"\u003e\n        \u003cspan\u003eFlow Rate\u003c\/span\u003e\n        \u003cstrong\u003eUp to 2.85–3.15 Gallons per Hour with 2 Filters Installed\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item\"\u003e\n        \u003cspan\u003eUse For\u003c\/span\u003e\n        \u003cstrong\u003eGravity Water Filter Systems\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item\"\u003e\n        \u003cspan\u003eSeries\u003c\/span\u003e\n        \u003cstrong\u003eK Series\u003c\/strong\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_item\"\u003e\n        \u003cspan\u003eCare\u003c\/span\u003e\n        \u003cstrong\u003eReusable \u0026amp; Washable Ceramic Surface\u003c\/strong\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"pw_filter_options_wrap\"\u003e\n      \u003cdiv class=\"pw_filter_section_title\"\u003eFiltration Options \u0026amp; Item Numbers\u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_options_grid\"\u003e\n        \u003cdiv class=\"pw_filter_option_card\"\u003e\n          \u003cdiv class=\"pw_filter_option_top\"\u003e\n            \u003ch3 class=\"pw_filter_option_name\"\u003e3-Stage Advanced\u003c\/h3\u003e\n            \u003cdiv class=\"pw_filter_item_badge\"\u003eItem No. K8013\u003c\/div\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"pw_filter_option_block\"\u003e\n            \u003cspan class=\"pw_filter_option_label\"\u003eFilter Material\u003c\/span\u003e\n            \u003cul\u003e\n              \u003cli\u003eCeramic\u003c\/li\u003e\n              \u003cli\u003eSilver Ion\u003c\/li\u003e\n              \u003cli\u003eActivated Carbon\u003c\/li\u003e\n            \u003c\/ul\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"pw_filter_option_block\"\u003e\n            \u003cspan class=\"pw_filter_option_label\"\u003eKey Functions\u003c\/span\u003e\n            \u003cdiv class=\"pw_filter_feature_tags\"\u003e\n              \u003cem\u003eRemoves Bacteria\u003c\/em\u003e\n              \u003cem\u003eReduces Chlorine\u003c\/em\u003e\n              \u003cem\u003eReusable \u0026amp; Washable\u003c\/em\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"pw_filter_option_block\"\u003e\n            \u003cspan class=\"pw_filter_option_label\"\u003ePerformance Details\u003c\/span\u003e\n            \u003cdiv class=\"pw_filter_perf_grid\"\u003e\n              \u003cdiv class=\"pw_filter_perf_item\"\u003e\n                \u003cspan\u003eFilter Life\u003c\/span\u003e\n                \u003cstrong\u003eUp to 10,000 Gallons per Box\u003c\/strong\u003e\n              \u003c\/div\u003e\n              \u003cdiv class=\"pw_filter_perf_item\"\u003e\n                \u003cspan\u003eFlow Rate\u003c\/span\u003e\n                \u003cstrong\u003eApprox. 2.85 Gallons per Hour with 2 Filters Installed\u003c\/strong\u003e\n              \u003c\/div\u003e\n              \u003cdiv class=\"pw_filter_perf_item\"\u003e\n                \u003cspan\u003eFilter Size\u003c\/span\u003e\n                \u003cstrong\u003eApprox. 2.44 in × 8.46 in \/ Φ6.2 × 21.5 cm\u003c\/strong\u003e\n              \u003c\/div\u003e\n              \u003cdiv class=\"pw_filter_perf_item\"\u003e\n                \u003cspan\u003eBox Weight\u003c\/span\u003e\n                \u003cstrong\u003eApprox. 1.39 lb Net \/ 1.48 lb Gross\u003c\/strong\u003e\n              \u003c\/div\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"pw_filter_option_card\"\u003e\n          \u003cdiv class=\"pw_filter_option_top\"\u003e\n            \u003ch3 class=\"pw_filter_option_name\"\u003e4-Stage Reduces PFAS\u003c\/h3\u003e\n            \u003cdiv class=\"pw_filter_item_badge\"\u003eItem No. 8091\u003c\/div\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"pw_filter_option_block\"\u003e\n            \u003cspan class=\"pw_filter_option_label\"\u003eFilter Material\u003c\/span\u003e\n            \u003cul\u003e\n              \u003cli\u003eCeramic\u003c\/li\u003e\n              \u003cli\u003eSilver Ion\u003c\/li\u003e\n              \u003cli\u003eActivated Carbon\u003c\/li\u003e\n              \u003cli\u003eHybrid Media\u003c\/li\u003e\n            \u003c\/ul\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"pw_filter_option_block\"\u003e\n            \u003cspan class=\"pw_filter_option_label\"\u003eKey Functions\u003c\/span\u003e\n            \u003cdiv class=\"pw_filter_feature_tags\"\u003e\n              \u003cem\u003eRemoves Bacteria\u003c\/em\u003e\n              \u003cem\u003eReduces Chlorine\u003c\/em\u003e\n              \u003cem\u003eReusable \u0026amp; Washable\u003c\/em\u003e\n              \u003cem\u003eReduces PFAS\u003c\/em\u003e\n              \u003cem\u003eReduces PFOA\u003c\/em\u003e\n              \u003cem\u003eReduces PFOS\u003c\/em\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"pw_filter_option_block\"\u003e\n            \u003cspan class=\"pw_filter_option_label\"\u003ePerformance Details\u003c\/span\u003e\n            \u003cdiv class=\"pw_filter_perf_grid\"\u003e\n              \u003cdiv class=\"pw_filter_perf_item\"\u003e\n                \u003cspan\u003eFilter Life\u003c\/span\u003e\n                \u003cstrong\u003eUp to 15,000 Gallons per Box\u003c\/strong\u003e\n              \u003c\/div\u003e\n              \u003cdiv class=\"pw_filter_perf_item\"\u003e\n                \u003cspan\u003eFlow Rate\u003c\/span\u003e\n                \u003cstrong\u003eApprox. 3.15 Gallons per Hour with 2 Filters Installed\u003c\/strong\u003e\n              \u003c\/div\u003e\n              \u003cdiv class=\"pw_filter_perf_item\"\u003e\n                \u003cspan\u003eFilter Size\u003c\/span\u003e\n                \u003cstrong\u003eApprox. 2.76 in × 7.09 in \/ Φ7 × 18 cm\u003c\/strong\u003e\n              \u003c\/div\u003e\n              \u003cdiv class=\"pw_filter_perf_item\"\u003e\n                \u003cspan\u003eBox Weight\u003c\/span\u003e\n                \u003cstrong\u003eApprox. 1.43 lb Net \/ 1.74 lb Gross\u003c\/strong\u003e\n              \u003c\/div\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"pw_filter_notes_wrap\"\u003e\n      \u003cdiv class=\"pw_filter_section_title\"\u003eUse Notes\u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_notes_grid\"\u003e\n        \u003cdiv class=\"pw_filter_note_item\"\u003e\n          \u003cdiv class=\"pw_filter_note_num\"\u003e01\u003c\/div\u003e\n          \u003cp class=\"pw_filter_note_text\"\u003eChoose 3-Stage Advanced for ceramic-based everyday filtration with bacteria removal and chlorine reduction.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"pw_filter_note_item\"\u003e\n          \u003cdiv class=\"pw_filter_note_num\"\u003e02\u003c\/div\u003e\n          \u003cp class=\"pw_filter_note_text\"\u003eChoose 4-Stage Reduces PFAS if you want added hybrid media designed to reduce PFAS, PFOA, and PFOS.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"pw_filter_note_item\"\u003e\n          \u003cdiv class=\"pw_filter_note_num\"\u003e03\u003c\/div\u003e\n          \u003cp class=\"pw_filter_note_text\"\u003eDesigned for Purewell K Series and SS Series gravity water filter systems.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"pw_filter_note_item\"\u003e\n          \u003cdiv class=\"pw_filter_note_num\"\u003e04\u003c\/div\u003e\n          \u003cp class=\"pw_filter_note_text\"\u003eAlso fits most gravity-fed systems from major brands, including Berkey, ProOne, Alexapure, Waterdrop, Doulton, Boroux, Culligan, Purewell, and more.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"pw_filter_note_item\"\u003e\n          \u003cdiv class=\"pw_filter_note_num\"\u003e05\u003c\/div\u003e\n          \u003cp class=\"pw_filter_note_text\"\u003eEach box includes 2 filters. Install both filters together for the listed flow rate and rated filter life.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"pw_filter_note_item\"\u003e\n          \u003cdiv class=\"pw_filter_note_num\"\u003e06\u003c\/div\u003e\n          \u003cp class=\"pw_filter_note_text\"\u003eClean the washable ceramic surface as needed and replace the filters when the rated capacity is reached or water flow becomes noticeably slower.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_specs_note\"\u003e\n        Note: Filter life and flow rate may vary depending on source water quality, usage frequency, and maintenance conditions. Always check filter size and system compatibility before purchase. Third-party brand names are used for compatibility reference only.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Purewell","offers":[{"title":"3-Stage Advanced","offer_id":45830567526565,"sku":"PF-4\/K8013","price":79.99,"currency_code":"USD","in_stock":true},{"title":"4-Stage Reduces PFAS","offer_id":45830567559333,"sku":"2CF-04\/K8091","price":99.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/2788\/9317\/files\/ceramic_water_filter_fdcd7fbe-e638-4c09-8907-8800fa6c377c.jpg?v=1784859737"},{"product_id":"k-series-carbon-fluoride-filter-bundle","title":"K Series Carbon \u0026 Fluoride Filter Bundle","description":"\u003cstyle\u003e\n  .pw_filter_bundle {\n    width: 100%;\n    max-width: 980px;\n    margin: 28px auto;\n    font-family: Arial, Helvetica, sans-serif;\n    color: #1f1f1f;\n    box-sizing: border-box;\n  }\n\n  .pw_filter_bundle * {\n    box-sizing: border-box;\n  }\n\n  .pw_filter_panel {\n    padding: 24px;\n    border-radius: 22px;\n    background: linear-gradient(135deg, #eef6ff 0%, #ffffff 52%, #f5f9ff 100%);\n    border: 1px solid #d9eaff;\n  }\n\n  .pw_filter_intro {\n    margin-bottom: 18px;\n  }\n\n  .pw_filter_intro h2 {\n    margin: 0 0 10px;\n    font-size: 26px;\n    line-height: 1.25;\n    color: #0b2f66;\n    font-weight: 800;\n  }\n\n  .pw_filter_intro p {\n    margin: 0;\n    font-size: 15px;\n    line-height: 1.7;\n    color: #4f5f70;\n  }\n\n  .pw_filter_specs_grid,\n  .pw_filter_bundle_grid,\n  .pw_filter_notes_grid {\n    display: grid;\n    gap: 12px;\n  }\n\n  .pw_filter_specs_grid {\n    grid-template-columns: repeat(3, 1fr);\n    margin-bottom: 16px;\n  }\n\n  .pw_filter_bundle_grid {\n    grid-template-columns: repeat(2, 1fr);\n    margin-bottom: 16px;\n  }\n\n  .pw_filter_specs_item,\n  .pw_filter_card,\n  .pw_filter_note {\n    border: 1px solid #dcecff;\n    background: rgba(255, 255, 255, .9);\n    border-radius: 16px;\n    padding: 16px;\n  }\n\n  .pw_filter_specs_item span,\n  .pw_filter_label {\n    display: block;\n    margin-bottom: 7px;\n    font-size: 12px;\n    line-height: 1.3;\n    color: #60758d;\n    text-transform: uppercase;\n    letter-spacing: .35px;\n    font-weight: 700;\n  }\n\n  .pw_filter_specs_item strong {\n    display: block;\n    font-size: 15px;\n    line-height: 1.45;\n    color: #1f1f1f;\n    font-weight: 800;\n  }\n\n  .pw_filter_primary {\n    background: linear-gradient(135deg, #036AFF 0%, #2088ff 100%);\n    border-color: #036AFF;\n  }\n\n  .pw_filter_primary span,\n  .pw_filter_primary strong {\n    color: #ffffff;\n  }\n\n  .pw_filter_card h3 {\n    margin: 0 0 10px;\n    font-size: 18px;\n    line-height: 1.35;\n    color: #111;\n    font-weight: 800;\n  }\n\n  .pw_filter_badge {\n    display: inline-block;\n    margin-bottom: 12px;\n    padding: 5px 9px;\n    border-radius: 999px;\n    background: #036AFF;\n    color: #ffffff;\n    font-size: 12px;\n    line-height: 1.2;\n    font-weight: 800;\n  }\n\n  .pw_filter_card ul,\n  .pw_filter_note ul {\n    margin: 0;\n    padding-left: 18px;\n    font-size: 14px;\n    line-height: 1.65;\n    color: #333;\n  }\n\n  .pw_filter_tags {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 7px;\n    margin-top: 10px;\n  }\n\n  .pw_filter_tags em {\n    display: inline-block;\n    padding: 6px 9px;\n    border-radius: 999px;\n    background: #eef6ff;\n    color: #036AFF;\n    font-size: 12px;\n    line-height: 1.2;\n    font-style: normal;\n    font-weight: 800;\n  }\n\n  .pw_filter_section_title {\n    margin: 18px 0 12px;\n    font-size: 14px;\n    line-height: 1.3;\n    color: #1f1f1f;\n    font-weight: 800;\n    text-transform: uppercase;\n    letter-spacing: .45px;\n  }\n\n  .pw_filter_notes_grid {\n    grid-template-columns: repeat(2, 1fr);\n  }\n\n  .pw_filter_note {\n    display: flex;\n    gap: 10px;\n  }\n\n  .pw_filter_note_num {\n    min-width: 24px;\n    font-size: 12px;\n    line-height: 1.5;\n    color: #036AFF;\n    font-weight: 800;\n  }\n\n  .pw_filter_note p {\n    margin: 0;\n    font-size: 13px;\n    line-height: 1.6;\n    color: #4f5f70;\n  }\n\n  .pw_filter_notice {\n    margin-top: 16px;\n    padding: 14px 16px;\n    border-radius: 14px;\n    background: #eef6ff;\n    border: 1px solid #dcecff;\n    font-size: 13px;\n    line-height: 1.65;\n    color: #4f5f70;\n  }\n\n  @media (max-width: 768px) {\n    .pw_filter_bundle {\n      padding: 0 14px;\n      margin: 22px auto;\n    }\n\n    .pw_filter_panel {\n      padding: 16px;\n      border-radius: 18px;\n    }\n\n    .pw_filter_intro h2 {\n      font-size: 22px;\n    }\n\n    .pw_filter_specs_grid,\n    .pw_filter_bundle_grid,\n    .pw_filter_notes_grid {\n      grid-template-columns: 1fr;\n    }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"pw_filter_bundle\"\u003e\n  \u003cdiv class=\"pw_filter_panel\"\u003e\n    \u003cdiv class=\"pw_filter_intro\"\u003e\n      \u003ch2\u003eK Series Carbon \u0026amp; Fluoride Filter Bundle\u003c\/h2\u003e\n      \u003cp\u003e\n        This replacement filter bundle pairs Purewell K Series carbon core filters with fluoride add-on filters for compatible gravity water filter systems. The carbon filters support everyday taste, odor, and chlorine reduction, while the fluoride add-on filters provide an additional filtration stage when fluoride reduction is desired.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"pw_filter_specs_grid\"\u003e\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n        \u003cspan\u003eProduct Type\u003c\/span\u003e\n        \u003cstrong\u003eReplacement Filter Bundle\u003c\/strong\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n        \u003cspan\u003eIncludes\u003c\/span\u003e\n        \u003cstrong\u003eCarbon Core Filters + Fluoride Add-On Filters\u003c\/strong\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pw_filter_specs_item pw_filter_primary\"\u003e\n        \u003cspan\u003eUse For\u003c\/span\u003e\n        \u003cstrong\u003eGravity Water Filter Systems\u003c\/strong\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pw_filter_specs_item\"\u003e\n        \u003cspan\u003eCompatibility\u003c\/span\u003e\n        \u003cstrong\u003ePurewell K Series \u0026amp; SS Series Systems\u003c\/strong\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pw_filter_specs_item\"\u003e\n        \u003cspan\u003eCarbon Filter Life\u003c\/span\u003e\n        \u003cstrong\u003eUp to 6,000 Gallons per Box\u003c\/strong\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pw_filter_specs_item\"\u003e\n        \u003cspan\u003eFluoride Filter Life\u003c\/span\u003e\n        \u003cstrong\u003eUp to 1,000 Gallons per Box\u003c\/strong\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"pw_filter_section_title\"\u003eWhat This Bundle Includes\u003c\/div\u003e\n\n    \u003cdiv class=\"pw_filter_bundle_grid\"\u003e\n      \u003cdiv class=\"pw_filter_card\"\u003e\n        \u003ch3\u003eK Series Carbon Core Filters\u003c\/h3\u003e\n        \u003cdiv class=\"pw_filter_badge\"\u003eCore Filter\u003c\/div\u003e\n        \u003cspan class=\"pw_filter_label\"\u003eDesigned To Support\u003c\/span\u003e\n        \u003cul\u003e\n          \u003cli\u003eEveryday drinking water filtration\u003c\/li\u003e\n          \u003cli\u003eChlorine taste and odor reduction\u003c\/li\u003e\n          \u003cli\u003eImproved water taste for daily use\u003c\/li\u003e\n          \u003cli\u003eUse as the main upper-chamber filter element\u003c\/li\u003e\n        \u003c\/ul\u003e\n        \u003cdiv class=\"pw_filter_tags\"\u003e\n          \u003cem\u003eCore Filtration\u003c\/em\u003e\n          \u003cem\u003eCarbon Media\u003c\/em\u003e\n          \u003cem\u003eGravity System Use\u003c\/em\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pw_filter_card\"\u003e\n        \u003ch3\u003eK Series Fluoride Add-On Filters\u003c\/h3\u003e\n        \u003cdiv class=\"pw_filter_badge\"\u003eSupplemental Filter\u003c\/div\u003e\n        \u003cspan class=\"pw_filter_label\"\u003eDesigned To Support\u003c\/span\u003e\n        \u003cul\u003e\n          \u003cli\u003eAdditional fluoride reduction after the core filter stage\u003c\/li\u003e\n          \u003cli\u003eSupplemental filtration below compatible carbon filters\u003c\/li\u003e\n          \u003cli\u003eUse only together with compatible core filters\u003c\/li\u003e\n          \u003cli\u003eReplacement when rated capacity is reached or flow slows\u003c\/li\u003e\n        \u003c\/ul\u003e\n        \u003cdiv class=\"pw_filter_tags\"\u003e\n          \u003cem\u003eFluoride Reduction\u003c\/em\u003e\n          \u003cem\u003eAdd-On Filter\u003c\/em\u003e\n          \u003cem\u003ePairs with Core Filter\u003c\/em\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"pw_filter_section_title\"\u003eHow The Two Filters Work Together\u003c\/div\u003e\n\n    \u003cdiv class=\"pw_filter_notes_grid\"\u003e\n      \u003cdiv class=\"pw_filter_note\"\u003e\n        \u003cdiv class=\"pw_filter_note_num\"\u003e01\u003c\/div\u003e\n        \u003cp\u003eWater first passes through the carbon core filters installed in the upper chamber of the gravity system.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pw_filter_note\"\u003e\n        \u003cdiv class=\"pw_filter_note_num\"\u003e02\u003c\/div\u003e\n        \u003cp\u003eThe carbon filters help reduce chlorine taste and odor and support everyday drinking water taste improvement.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pw_filter_note\"\u003e\n        \u003cdiv class=\"pw_filter_note_num\"\u003e03\u003c\/div\u003e\n        \u003cp\u003eThe fluoride add-on filters attach below compatible core filters as a supplemental filtration stage.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pw_filter_note\"\u003e\n        \u003cdiv class=\"pw_filter_note_num\"\u003e04\u003c\/div\u003e\n        \u003cp\u003eThe add-on filters are not designed to replace the main carbon filters and should not be used alone.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pw_filter_note\"\u003e\n        \u003cdiv class=\"pw_filter_note_num\"\u003e05\u003c\/div\u003e\n        \u003cp\u003eReplace each filter type based on its rated capacity, water quality, usage frequency, and observed flow rate.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pw_filter_note\"\u003e\n        \u003cdiv class=\"pw_filter_note_num\"\u003e06\u003c\/div\u003e\n        \u003cp\u003eFlush and install all filters according to the product instructions before using the system for drinking water.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"pw_filter_notice\"\u003e\n      Note: Filter life, flow rate, and contaminant-reduction performance may vary depending on source water quality, system setup, usage frequency, filter condition, and maintenance. Fluoride add-on filters are supplemental filters and must be paired with compatible carbon core filters. Always review the applicable product specifications, installation instructions, and test documentation before purchase.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Purewell","offers":[{"title":"Default Title","offer_id":48117409185957,"sku":"PF-3+FL-2\/K8012+K8003","price":87.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/2788\/9317\/files\/carbon_fluoride.png?v=1788159824"}],"url":"https:\/\/www.purewell.com\/en-gb\/collections\/k-series-filters.oembed","provider":"Purewell","version":"1.0","type":"link"}