Purewell® - K Series - 4 Stages Ceramic Water Filter Replacement, Remove 99% PFAS, Chlorine, Lead, Compatible with Berkey, ProOne & Doulton Gravity Water Filter System
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✅ [NSF 53 Certified] 99%+ PFAS Removal for Healthier Water Enjoy peace of mind with Purewell’s NSF 53 certified filter, proven to eliminate 99%+ PFAS, chlorine and heavy metals from your drinking water. Designed to preserve beneficial minerals, it delivers pure, refreshing and great-tasting water that exceeds industry standards.
✅ [4-Stage Materials] Ceramic Layer, Hybrid Media, Silver Ion, and Activated Carbon—to capture fine particles, adsorb harmful chemicals, and neutralize microbial growth. Delivers comprehensive protection against forever chemicals, lead and microplastics.
✅ [Durable, Washable & Long-Lasting Design] Each pair of ceramic filter delivers up to 15,000 gallons. The washable, reusable ceramic shell ensures long-term performance, lowers replacement costs, and provides reliable purification for years of use.
✅ [Compatibility with Most Brands] This replacement water filter fits most gravity-fed water filter systems including Berkey, ProOne, Alexapure, Waterdrop, Doulton, Boroux, Culligan, Purewell and more. Designed for a tight seal and consistent water flow without leaks.
✅ [Portable & Easy to Use] Pure Water Anywhere No tools or electricity required. Simply install and enjoy fresh, great-tasting water instantly. Perfect for home, travel, camping, or emergency use, this gravity system works with tap, rain, or outdoor sources for clean hydration anytime, anywhere.
How often to replace filter: approx 3 months
How soon to arrange order: within 1-2 working days
Certification: American Native NSF Certification
Purewell provides a 30-days return policy, which means you have 30 days after receiving your item to request a return with reasonable reason.
Buyer should pay the express cost for returning, if customer want to change another size, color, system or don’t like it, within 7 days.
To be eligible for a return, your item must be in the same condition that you received it, didn't fill chambers with water, unopened or unused, with tags, and in its original packaging. Or Purewell has the right to refuse return & refund.
You’ll also need to provide the order number or receipt or proof of the purchase.
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 3-7 business day. Please remember it will take some time for your bank or credit card company to process and post the refund too.
System Series |
K Series |
Temperature |
41℉-100℉ / 5℃-38℃ |
Water Sources |
Tap, Stream, Rain, River, Well etc |
Lifespan |
15,000 gallons (per pair of ceramic filter) |
FAQ
Before buying, please confirm if your system has installation hole (1.4cm/0.55″). If no, this filter doesn't fit your system.
Normally, it fits Berkey, Alexpure, Boroux, ProOne, Culligan, Waterdrop.
Approx 24 months. It also depends on water quality.
Please reach out to service@purewell.com for further help.