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Portable Hand-Pump Reverse Osmosis Water Filter

Name: Portable Hand-Pump Reverse Osmosis Water Filter
Brand: Purewell
SKU: K8190
Price: 55.99 USD
Availability: OutOfStock

Regular price $55.99 USD ~~$55.99~~ 0% OFF

Tax included. Shipping calculated at checkout.

Sold out

Effective Date: July 2026
Last Updated: July 2026

At Purewell, we want you to feel confident when shopping for home and outdoor water filtration products. This Return & Refund Policy explains how returns, refunds, exchanges, damaged items, missing items, replacement filters, and product-specific return conditions are handled.

This Policy applies to purchases made directly through www.purewell.com. If you purchased a Purewell product through another retailer, marketplace, reseller, or distributor, please contact that seller directly for their return and refund policy.

1. 30-Day Return Window

We offer a 30-day return window. This means you may request a return within 30 days after receiving your item, provided that the item meets the eligibility requirements in this Policy.

To start a return, you must contact us before sending any item back. Items returned without prior authorization may not be accepted.

2. Return Eligibility

To be eligible for a return, the product must generally be:

Purchased directly from Purewell.com.
Returned within the applicable return window.
Unused, uninstalled, unfilled with water, and in the same condition as received.
Returned with original packaging, manuals, accessories, components, and proof of purchase.
Free from damage, stains, odors, contamination, scratches, dents, missing parts, or signs of improper use.

Purewell reserves the right to refuse a return or reduce the refund if the returned product does not meet these conditions, subject to applicable law.

3. Drinking Water Hygiene Policy

Because Purewell products are used for drinking water filtration, hygiene and product safety are important. Products that have been filled with water, installed, activated, primed, connected, used, or otherwise exposed to drinking water may not be eligible for resale or standard return processing.

For hygiene reasons, used water-contact components, opened consumable filters, and products that show signs of use may be non-returnable unless the return is related to a verified defect, damage, or incorrect item caused by Purewell.

4. Non-Returnable Items

The following items may not be eligible for return or refund unless required by law or unless the issue is caused by Purewell:

Used, installed, filled, activated, or water-exposed products.
Opened, used, activated, primed, expired, or contaminated replacement filters.
RO membranes, filter cartridges, carbon filters, gravity filter elements, outdoor filter elements, and other consumable filtration components once opened or used.
Products missing original packaging, manuals, accessories, or required components.
Products damaged by misuse, neglect, improper installation, unauthorized modification, or incompatible accessories.
Gift cards, digital products, final sale items, clearance items, or customized products where applicable.

5. Replacement Filters and Consumable Products

Replacement filters are consumable products. This includes gravity filters, RO filters, RO membranes, carbon filters, outdoor filter elements, bottle filters, straw filters, pump filters, and similar filtration components.

For safety and hygiene reasons, replacement filters may only be returned if they are unopened, unused, unprimed, uninstalled, and in original packaging, unless the item is defective, damaged, incorrect, or otherwise required by applicable law.

6. Gravity Water Filter Systems

For countertop gravity water filter systems, all chambers, lids, spigots, stands, water level windows, filters, washers, seals, and accessories must be returned complete and in original condition.

Gravity systems that have been assembled, filled with water, used for filtration, contaminated, dented, scratched beyond normal inspection, or returned with missing parts may not qualify for a full refund.

7. Countertop Reverse Osmosis Systems

Countertop RO systems must be returned with all tanks, pitchers, filters, membranes, power adapters, accessories, tubing, manuals, and packaging included, where applicable.

RO systems that have been installed, flushed, filled, activated, connected to power, connected to water, or used may be subject to inspection and may not qualify for a standard return due to hygiene, performance, and resale limitations.

8. Outdoor Water Purifiers

Outdoor water purifiers, filter pumps, water filter bottles, water filter straws, soft flasks with filters, and similar products must be returned unused, clean, dry, and complete with all original components.

Outdoor filtration products exposed to natural water sources, dirt, sand, mud, chemicals, biological material, or other outdoor contaminants may be non-returnable unless the issue is verified as a Purewell-caused defect, damage, or incorrect shipment.

9. Damaged, Defective or Incorrect Items

Please inspect your order as soon as it arrives. If you receive a damaged, defective, incorrect, or incomplete item, contact us as soon as possible so we can evaluate the issue and make it right.

To help us process the claim, please provide your order number, photos or videos of the product, photos of the packaging, shipping label, and a description of the issue. If the issue is caused by Purewell or our fulfillment process, you will not be required to pay return shipping for that issue.

10. Missing Items

If your order is missing a product, accessory, filter, manual, or required component, please contact us as soon as possible with your order number and photos of the package contents. We will review the issue and may send the missing item, provide a replacement, or offer another appropriate solution.

11. Return Shipping Costs

If the return is caused by customer preference, ordering error, change of mind, incorrect product selection, or other customer-related reasons, the customer is generally responsible for return shipping costs. The exact cost depends on the carrier or shipping service selected.

If the return is caused by Purewell, such as an incorrect item, damaged item, verified defect, or fulfillment error, Purewell will cover the return shipping cost or provide another suitable solution in accordance with this Policy and applicable law.

12. How to Start a Return or Exchange

To request a return or exchange, please use our Returns & Exchanges Portal, available on our website and in your customer account.

Simply enter your Order Number and the Email Address used for your purchase. If your order is eligible, you can submit your request online.

Once approved, we will email you a prepaid return label and return instructions. After we receive and inspect your returned item, we will process your refund or ship your replacement order, as applicable.

If you need assistance at any time, please contact us at info@purewell.com.

13. Return Address

Return addresses may vary depending on product type, order location, warehouse availability, and the reason for return. Please do not use any address published on the website or package unless we specifically provide that address for your return authorization.

Items sent to the wrong address, sent without authorization, or sent without tracking may be delayed, refused, or ineligible for refund.

14. Tracking Number Requirement

Once you ship a return, please provide the tracking number to Purewell promptly. We recommend using a trackable shipping service and keeping proof of shipment. Purewell is not responsible for returns lost in transit when the customer arranges return shipping.

15. Inspection and Refund Approval

After we receive your return, we will inspect the product to confirm condition, completeness, eligibility, and compliance with this Policy. We will notify you whether the refund is approved, partially approved, denied, or requires further review.

If the returned product is used, damaged, missing parts, missing packaging, contaminated, or not in eligible condition, we may reduce the refund, refuse the return, or return the item to you, subject to applicable law.

16. Refund Processing

If your refund is approved, the refund will generally be issued to the original payment method within 3–7 business days after approval. Your bank, credit card issuer, payment provider, or payment network may take additional time to process and post the refund.

Shipping fees, customs duties, import taxes, payment provider fees, and other third-party charges may not be refundable unless required by law or caused by Purewell’s error.

17. Exchanges

Where available, we may offer exchanges for eligible items. The fastest way to receive a different product may be to return the eligible item and place a new order after the return is approved.

Exchanges are subject to product availability, condition requirements, shipping limitations, and applicable law.

18. Promotions, Bundles and Gifts

Orders purchased with discounts, coupon codes, bundles, gifts, free items, or promotional offers may be refunded based on the amount actually paid after discounts. If a bundle or promotional set is returned partially, the value of any retained items, gifts, or discounts may be deducted from the refund.

Promotional items, free gifts, or bonus products may need to be returned with the original order to receive a full refund.

19. International Orders, Customs and VAT

For international orders, shipping costs, customs duties, import taxes, VAT, brokerage fees, or similar charges may be handled differently depending on destination country and checkout terms. Unless otherwise required by law or caused by Purewell’s error, customs duties, import taxes, VAT, and third-party fees are generally not refundable by Purewell.

20. EU and UK Consumer Rights

If you are a consumer located in the European Union, United Kingdom, or another jurisdiction with mandatory consumer protection rights, you may have additional rights that apply regardless of this Policy.

For eligible online purchases in the European Union, consumers generally have the right to withdraw from the contract within 14 days after receiving the goods, subject to legal exceptions. UK online consumers generally have similar cancellation rights. Certain items, including goods that are not suitable for return for health protection or hygiene reasons once unsealed after delivery, may be excluded where permitted by law.

Nothing in this Policy limits your mandatory statutory rights.

21. Warranty Claims vs Returns

A return request is different from a warranty claim. Returns are generally handled within the return window and based on product condition. Warranty claims are handled under the applicable product warranty and may relate to defects in materials or workmanship during the warranty period.

If your issue occurs after the return window, please contact us so we can determine whether warranty support may apply.

22. Water Quality and Performance Expectations

Water filtration performance, water taste, water clarity, flow rate, TDS readings, and filter lifespan may vary depending on local water quality, source water conditions, contaminant levels, water temperature, usage frequency, maintenance, and filter age.

Dissatisfaction based solely on taste preference, flow rate expectations, local water conditions, or misunderstanding of filtration technology may not qualify as a defect unless verified through product evaluation or required by applicable law.

23. Policy Updates

We may update this Return & Refund Policy from time to time to reflect changes in our products, operations, logistics, legal requirements, or customer service procedures. The latest version will be posted on this page with an updated date.

24. Contact Us

If you have questions about returns, refunds, exchanges, damaged items, missing items, or warranty support, please contact Purewell through the contact information provided on our website.

More Than a Product Claim: Evidence You Can Check

Certification standards and independent test reports help customers understand what a filtration product has actually been evaluated for. Instead of relying only on packaging, advertising, or marketplace descriptions, you can review the applicable standard, product model, tested claim, and supporting documentation.

Documentation Across Purewell Filtration Products Purewell filtration systems and replacement filters are supported by corresponding certification and/or test documentation. Customers can review system documents, filter documents, and performance reports through the Purewell Test Reports page.

Verifiable Evidence

NSF/ANSI 42

Drinking Water Treatment Units — Aesthetic Effects

What Does It Mean in Everyday Language?

This standard evaluates drinking-water treatment products for specified effects that influence the appearance, taste, smell, or everyday drinking experience of water.

Chlorine reduction, when listed

Taste and odor reduction, when listed

Particulate reduction, when listed

Materials, construction, and performance requirements

Certification Is Claim-Specific NSF/ANSI 42 does not automatically mean that a product reduces every contaminant. Check the certificate or listing for the exact model and certified reduction claims.

372

NSF/ANSI/CAN 372

Drinking Water System Components — Lead Content

What Does It Mean in Everyday Language?

This standard evaluates the lead content of materials and components that come into contact with drinking water, using defined calculations and verification procedures.

Evaluates wetted product components

Verifies applicable lead-content limits

Reviews materials used in the water pathway

Supports lead-content compliance verification

Lead Content Is Not Lead Reduction NSF/ANSI/CAN 372 evaluates lead content in product materials. It does not by itself certify that a filter removes lead already present in the source water.

From a Marketing Claim to Verifiable Evidence

Reliable documentation connects a standard to an identifiable product, a defined test scope, and a report or certificate that customers can review.

Identify the Standard Confirm whether the document refers to NSF/ANSI 42, NSF/ANSI/CAN 372, or another applicable standard.

Match the Product Check that the brand, product type, component, or model matches the item being sold.

Read the Test Scope Review exactly what was evaluated, including the reduction claim, material requirement, test condition, or performance category.

Review the Evidence Open the certificate, listing, or laboratory report instead of relying only on a badge or unsupported product description.

Product with Verifiable Documentation Claims can be checked against supporting evidence.

The applicable product or component can be identified.
The meaning and scope of the standard can be reviewed.
Specific performance claims can be checked against a report.
Customers can distinguish certification from general testing.
Material and performance claims have a documented basis.

Documentation does not mean every possible contaminant has been tested. It provides evidence for the specific scope shown in the applicable certificate or report.

Product Without Accessible Evidence Important claims may be difficult to confirm.

A standard logo may appear without a matching certificate.
The tested model may differ from the product being purchased.
Broad removal claims may exceed the actual test scope.
Lead-content compliance may be unclear or undocumented.
Customers may be unable to verify the source or date of a report.

An unavailable report does not automatically prove that a product is unsafe. However, it prevents customers from independently confirming the advertised certification and performance claims.

Documentation Available from Purewell

Purewell organizes supporting documents by system, filter, standard, and filtration performance so customers can review the evidence relevant to their product.

Filter System Documents Certification or test documentation associated with applicable complete filtration-system components.

Replacement Filter Documents Supporting documentation associated with applicable Purewell replacement filters and filter elements.

Performance Test Reports Laboratory reports covering specified filtration-performance categories under defined test conditions.

Customer-Accessible Files Downloadable documents provide more transparency than a badge, short claim, or marketplace product description alone.

Important Certification Notes

Reading the standard correctly is as important as seeing the certification or test badge.

Check the Exact Product or Component Certification and test results should be matched to the applicable product, filter, component, model, or documented product family.

Check the Exact Certified Claim A product certified under NSF/ANSI 42 may support only the reduction claims specifically shown in its certificate or listing.

372 Does Not Mean Lead Removal NSF/ANSI/CAN 372 concerns lead content in wetted materials. Lead reduction from source water requires a separate applicable filtration-performance claim.

Certification and Testing Are Different A certification, a component certification, and an independent laboratory test report are different forms of evidence and should be described accurately.

Review Test Conditions Results may depend on source-water conditions, flow rate, capacity, product setup, test protocol, and filter condition.

Replace Filters as Directed Certification or testing does not make a filter permanent. Follow the applicable installation, flushing, use, and replacement instructions.

Review the Documents Before You Choose

View Purewell system documents, replacement-filter documents, and filtration-performance reports. Select the files that correspond to the product and performance claim you want to verify.

View Test Reports

Pressure-Driven Reverse Osmosis Technology

A Selective Membrane Designed to Reduce Dissolved Solids

A reverse osmosis membrane uses pressure and selective separation to divide incoming water into two streams. Water that passes through the membrane becomes the purified-water stream, while many rejected dissolved substances leave through a separate concentrated-water outlet.

Standard Composite RO Cartridge The K8680 combines activated carbon and a reverse osmosis membrane inside its standard composite cartridge. The RO membrane is part of the main filtration construction rather than an optional add-on.

K8680 Standard

Separation Across the RO Membrane

Pressurized Feed Water

Concentrated Water

Purified Water

TDS

Ion

Salt

Ion

Pump pressure moves source water toward the membrane

Water passes through the selective membrane layer

Rejected dissolved substances leave with concentrated water

How Reverse Osmosis Works

Reverse osmosis is not simple particle screening. The system uses pump pressure to move pretreated water across a selective membrane and separate the purified-water stream from the concentrated-water stream.

Water Is Pretreated The intake pre-filter and activated carbon stages help reduce sediment, debris, chlorine-related characteristics, taste, and odor before water reaches the RO membrane.

The Pump Creates Operating Pressure The electric pump provides the pressure required to move source water toward and across the reverse osmosis membrane.

Water Contacts the Selective Membrane The membrane allows water to move into the purified-water pathway while restricting many dissolved salts, ions, and other membrane-rejected substances.

Purified Water Passes Through Water that passes through the membrane is called permeate and is directed toward the blue PURE water outlet.

Concentrated Water Is Separated Rejected dissolved substances remain in the concentrated water stream, which leaves the system through the red DIRTY water outlet.

Helps Reduce TDS Reverse osmosis is designed to reduce many dissolved substances that contribute to total dissolved solids.

Selective Separation The membrane separates water from many dissolved salts, minerals, ions, and other membrane-rejected substances.

Separate Water Streams Purified water and concentrated water leave through separate outlets instead of remaining mixed together.

Works with Multiple Stages The RO membrane works together with pre-filtration, activated carbon, TDS monitoring, and UV treatment in the K8680 system.

✓ Designed to Help Reduce

Total dissolved solids in source water
Many dissolved salts and mineral ions
Certain dissolved metals and inorganic substances
Selected contaminants rejected by the membrane
Differences between raw-water and purified-water TDS

i Understand the Filtration Limit

Does not reduce every substance at the same rate
Does not eliminate the need for pre-filtration
Requires suitable pressure and operating conditions
Produces a separate concentrated-water stream
Is not intended for seawater or industrial wastewater

Important Use and Care Notes

Correct preparation, source-water selection, flushing, and timely cartridge replacement help maintain membrane performance.

Complete the Initial Flush Flush the system before drinking from it for the first time. Discard the initial water until it runs clear and the system completes its cleaning cycle.

Protect the Membrane with Pre-Filtration Keep the intake pre-filter and medical PP cotton clean. Excess sediment can reduce water flow and place additional load on the RO cartridge.

Use Within the Temperature Range Use source water between 41°F and 100°F / 5°C and 38°C. Do not use hot water or allow the system to freeze.

Monitor Purified-Water TDS Compare raw-water and purified-water TDS readings. A consistently elevated purified-water reading may indicate reduced membrane performance.

Replace the Cartridge When Needed Replace the composite RO cartridge when its rated life is reached or when water flow, taste, odor, or TDS performance noticeably declines.

Store the System Correctly For long-term storage, drain the system, remove the filters, allow the components to dry, and store them in a cool, dry location.

Reverse osmosis performance depends on source-water TDS, temperature, pump pressure, membrane condition, flow rate, maintenance, and product design. The K8680 specification lists a 95% desalination rate under rated conditions. Actual results may vary. Specific contaminant-reduction statements should be based on the applicable Purewell product specifications and test reports.

Coconut Shell Activated Carbon Technology

Coconut Shell Activated Carbon Designed to Improve Water Taste and Odor

Where listed in the applicable Purewell product specification, the filtration media uses activated carbon derived from coconut shells. The coconut shells are processed to create a network of microscopic pores and a large internal surface area. As water moves through the media, certain compounds are attracted to and held on the carbon surface through a process known as adsorption.

Coconut Shell–Derived Activated Carbon Media Where activated carbon is listed in the product specification, Purewell uses activated carbon derived from coconut shells as part of the standard filter construction rather than offering it only as an optional upgrade.

Purewell Standard

Adsorption Inside the Carbon Media

Incoming Water

Water Flows Out

Water carries chlorine, taste, odor, and certain organic compounds

Certain compounds are held within the porous carbon surface

Water continues through the filtration system

How Activated Carbon Works

Coconut shells are converted into highly porous activated carbon. The media primarily works through adsorption, meaning certain compounds are attracted to the carbon surface instead of simply being screened out by pore size.

Water Enters the Carbon Media Source water flows around and between the activated carbon particles inside the filter.

Water Contacts the Porous Coconut Carbon Processing the coconut shell material creates microscopic pores and a large internal surface area for water and dissolved compounds to contact.

Certain Compounds Are Adsorbed Chlorine, taste-and-odor compounds, and certain organic substances may be attracted to and held on the carbon surface.

Water Continues Through the Filter After contacting the carbon media, water moves to the next filtration stage or exits the system, depending on the filter design.

Improves Taste and Odor Helps reduce compounds that can create unwanted tastes or odors in drinking water.

Helps Reduce Chlorine Activated carbon is commonly used to help reduce chlorine taste and odor in treated municipal water.

High Internal Surface Area A network of microscopic pores creates extensive contact area within a compact amount of filter media.

No Treatment Chemicals Added Activated carbon performs through surface adsorption and does not require chemicals to be added to the water.

Coconut Shell–Derived Media Uses activated carbon made from processed coconut shells, where specified for the applicable Purewell filter.

✓ Designed to Help Reduce

Chlorine taste and odor
Unpleasant tastes and smells
Certain volatile organic compounds
Certain adsorption-sensitive organic substances

i Understand the Filtration Limit

Does not normally reduce dissolved salts or TDS
Does not soften hard water by itself
Is not a complete microbiological barrier on its own
Does not reduce every contaminant without additional media

Important Use and Care Notes

Correct preparation and timely replacement help maintain adsorption performance and water quality.

Flush Before First Use Flush the filter according to the product instructions before drinking. This helps remove loose carbon fines and trapped air.

Temporary Carbon Fines May Appear A small amount of dark carbon dust may appear during initial rinsing. Continue flushing until the water runs clear.

Use Within the Recommended Temperature Range Do not use hot water unless the specific product instructions state that the filter is designed for hot-water use.

Use with an Appropriate Water Source Activated carbon alone does not make microbiologically unsafe, industrially polluted, or saltwater sources suitable for drinking.

Replace the Filter on Schedule Adsorption sites gradually become occupied. Replace the filter when its rated life is reached or when taste and odor reduction noticeably declines.

Follow Storage Instructions Clean and store the filter as directed when the system will not be used for an extended period. Do not leave stagnant water in the system longer than recommended.

Coconut Allergy Precaution This filtration media is derived from coconut shells. People with a known coconut allergy or sensitivity should review the product materials and consult a qualified healthcare professional before use.

Filtration performance depends on the activated carbon type, carbon quantity, contact time, water quality, flow rate, product design, and maintenance. Specific contaminant-reduction claims should be based on the applicable Purewell product specifications and test results.

Ask about Portable Hand-Pump Reverse Osmosis Water Filter

Product Details

Product Overview

Product Name Portable Hand-Pump Reverse Osmosis Water Filter

A compact manual RO filtration system designed for camping, hiking, travel, emergency preparedness, and remote water treatment.

Model K8190

A portable pump-driven filtration system that creates the pressure needed to move source water through an RO membrane without electricity.

RO Filtration Precision 0.0001 μm RO Membrane

High-precision reverse osmosis filtration designed to reduce dissolved solids and a broad range of contaminants from source water.

High-Precision RO Filtration

Rated Filter Capacity Up to 10,000 L / 2,641 Gallons

Actual filter life may vary according to source-water quality, dissolved solids, sediment, maintenance, and frequency of use.

Replaceable Filter

Power Requirement No Electricity Required

The integrated hand pump generates filtration pressure without batteries, charging, outlets, or fixed plumbing.

Rated Flow Rate Approximately 200–300 ml/min

Output may vary according to pumping speed, water quality, temperature, and the condition of the filtration components.

Product Dimensions 9.5 × 4.5 × 27 cm

A slim vertical body designed for backpacks, emergency kits, camping equipment, and vehicle preparedness supplies.

Net Weight Approximately 415 g

A portable design that integrates the pressure pump, filter housing, filtration components, and hose connections.

Recommended Water Sources River, Stream, Lake, Well, Rainwater and Tap Water

Select the clearest available water source whenever possible to support steadier output and longer filter life.

Water Separation Pure-Water and Wastewater Outlets

The RO structure separates incoming water into a purified-water stream and a wastewater stream during filtration.

Water Intake Floating External Pre-Filter

The floating intake helps position the inlet away from heavier sediment that may collect at the bottom of a water source.

Best For Camping, Hiking, Travel and Emergencies

Suitable for outdoor recreation, emergency supply kits, remote travel, vehicle preparedness, and temporary off-grid filtration.

Water-source warning: Avoid water affected by fuel, industrial chemicals, pesticides, radioactive materials, or other unknown hazardous contamination. When source-water safety is uncertain, choose a safer water source.

3-Stage Reverse Osmosis Filtration

Manual Pressure, Multi-Layer Water Treatment

Movement of the hand pump draws source water through the intake assembly and internal filtration materials. Particle control and carbon filtration help prepare the water before it reaches the high-precision reverse osmosis membrane.

PP Cotton Pre-Filtration

Helps intercept sediment, soil, rust particles, suspended material, and other visible debris before water reaches the finer filtration layers.

Sediment Control Particle Capture Pre-Filtration

Activated Carbon Filtration

Helps reduce chlorine, unpleasant taste, and odor while helping protect the RO membrane from selected substances in the incoming water.

Chlorine Reduction Taste Improvement Odor Reduction

0.0001 μm RO Membrane

The reverse osmosis membrane provides high-precision filtration designed to reduce dissolved solids, salts, selected heavy metals, and other dissolved contaminants.

0.0001 μm RO Membrane Dissolved Solids Reduction

RO separation process: Purified water leaves through the pure-water outlet, while concentrated wastewater leaves through the separate wastewater outlet as part of normal RO membrane operation.

Replacement Filters & Components

Maintain Performance with Replaceable Components

The primary filtration cartridge and external intake pre-filter are serviceable filtration components. Replacing worn parts allows the pump body, handle, hoses, connectors, and other reusable components to remain in service.

Main Replacement Filter K8190 Composite RO Filter Cartridge

The internal cartridge combines PP cotton, activated carbon, and a high-precision reverse osmosis membrane to provide the system’s primary filtration performance.

PP Cotton Activated Carbon 0.0001 μm RO Up to 10,000 L

Designed for the K8190 RO Pump Filter

Replace when: the rated capacity is reached, purified-water output remains reduced, taste or odor changes, or the cartridge shows physical damage or abnormal performance.

Water Intake Protection Replacement External Pre-Filter

The external pre-filter connects to the source-water inlet hose and helps intercept larger particles before they enter the pump body and main RO cartridge.

External Intake PP Cotton Sediment Control Replaceable Part

Designed for the K8190 Intake Hose

Clean or replace when: visible debris accumulates, the material becomes damaged, pumping resistance increases, or water intake remains restricted after cleaning.

Replacement reminder: The 10,000-liter capacity is a maximum reference value. Source-water quality, dissolved solids, sediment, storage conditions, and frequency of use can affect actual filter life.

Key Product Indicators

RO Filtration Precision 0.0001 μm

High-precision reverse osmosis membrane filtration designed for dissolved-solids reduction.

Rated Filter Capacity Up to 10,000 L / 2,641 Gallons

Actual service life depends on water quality, dissolved solids, sediment, maintenance, and usage frequency.

Purified-Water Flow Rate Approximately 200–300 ml/min

Output may vary according to pumping speed, temperature, membrane condition, and source-water characteristics.

Operating Method Manual Hand-Pump Operation

Repeated handle movement creates the pressure needed to move source water through the RO filtration system.

Filter Materials PP Cotton, Activated Carbon and RO Membrane

Multiple filtration materials work together to control particles, improve taste, and provide RO filtration.

Outlet Configuration Separate Pure-Water and Wastewater Outlets

The dual-outlet structure supports the separation process required during reverse osmosis filtration.

Product Dimensions 9.5 × 4.5 × 27 cm

A compact vertical form designed for outdoor bags, emergency kits, vehicle storage, and equipment cases.

Net Weight Approximately 415 g

Portable enough for outdoor and emergency use while integrating the hand pump and filtration housing.

Care & Use Notes

Protect the RO Membrane and Keep the System Ready

Proper cleaning, wastewater discharge, storage, and routine inspection help maintain water flow and protect the internal filtration components. Detailed assembly and operating steps are provided separately in the product user guide.

Filter Water Only

Do not use the system for carbonated drinks, sugary liquids, flavored beverages, alcohol, milk, juice, or other non-water liquids.

Avoid Detergents and Chemicals

Do not clean the filter cartridge with soap, detergent, bleach, solvents, corrosive cleaners, or abrasive materials.

Keep the Wastewater Valve Open

During RO purified-water production, keep the wastewater valve open so concentrated water can discharge normally and help reduce premature membrane blockage.

Keep Both Outlets Separate

Do not allow the pure-water hose or clean-water container to contact the wastewater hose, untreated water, or contaminated surfaces.

Choose the Clearest Source Available

Heavy sediment and muddy water may increase pumping resistance, reduce output, and shorten the life of the pre-filter and RO cartridge.

Check the External Pre-Filter

Inspect the intake pre-filter when pumping becomes harder or water intake slows. Remove visible debris and replace damaged material.

Inspect Hoses and Seals

Before outdoor use, check the hoses, connectors, sealing rings, floater, valves, and filter housing for looseness, wear, cracks, or damage.

Rinse with Clean Water

After use, rinse the washable exterior parts, hoses, intake pre-filter, and filter housing with clean water without using detergent.

Remove Residual Water

Drain water from the hoses, pump body, outlets, and accessible components as thoroughly as possible before packing the system.

Dry Before Long-Term Storage

Allow washable components to dry in a clean, ventilated area before placing the filter, hoses, and accessories into the storage bag.

Store in a Cool, Dry Place

Keep the system in a dry, cool location away from direct sunlight, high temperatures, corrosive substances, dirt, and unnecessary pressure.

Release a Stiff Handle Carefully

If the handle becomes stiff after storage, gently rotate and move it before pumping. Do not strike the handle or force it abruptly.

Monitor Purified-Water Output

A persistent reduction in output may indicate a dirty pre-filter, restricted hose, closed wastewater valve, or filtration component requiring maintenance.

Replace the Cartridge on Time

Replace the main cartridge when its rated capacity is reached or earlier if output, taste, odor, physical condition, or overall performance changes.

Do Not Operate Damaged Parts

Stop using the system when the filter housing, membrane cartridge, valves, hoses, seals, or connectors appear cracked, deformed, or unable to seal correctly.

Keep Replacement Parts Clean

Store replacement filters and accessories in their clean packaging until needed, and avoid touching water-contact surfaces with dirty hands.

Important RO operating reminder: Do not routinely close the wastewater valve while producing RO purified water. Restricted wastewater discharge may accelerate buildup inside the membrane and reduce filtration performance.

User Guide

How to Use

Set Up, Pump and Collect RO-Purified Water

Connect the source-water intake, pure-water outlet and wastewater outlet before pumping. The integrated hand pump creates the pressure needed to move source water through the PP cotton, activated carbon and reverse osmosis filtration materials.

K8190 RO Pump Filter No Electricity Required Approximately 200–300 ml/min 0.0001 μm RO Membrane

Connect All Three Water Paths

Connect the long source-water inlet hose, short pure-water hose and short wastewater hose before operating the pump.

Keep the Pure-Water Side Clean

Prevent the pure-water hose and collection container from touching untreated water, soil, wastewater or dirty equipment.

Open the Wastewater Valve for RO Use

Wastewater must discharge normally while producing RO-purified water to help protect the membrane from premature blockage.

First-Time Assembly & Setup

Assemble the source-water intake, pure-water outlet and wastewater outlet before placing the pre-filter into the water source.

Inspect the system components

Check the pump body, filter cartridge, hoses, pre-filter, floaters, sealing rings, connectors and valves for visible damage or missing parts.

Attach the floaters to the long inlet hose

Install the supplied floaters on the longer silicone hose. They help keep the source-water intake below the surface and away from heavier sediment at the bottom.

Connect the external pre-filter

Secure the pre-filter to one end of the longer inlet hose. Confirm that the connection is fully inserted and does not loosen when the hose is moved.

Connect the inlet hose to the filter body

Attach the opposite end of the longer hose to the water inlet located near the lower section of the pump filter.

Connect the pure-water outlet hose

Attach one short silicone hose to the pure-water outlet. Keep this hose clean because it carries the water collected for use.

Connect the wastewater outlet hose

Attach the second short hose to the wastewater outlet. Direct this hose away from the pure-water container and clean-water collection area.

Check the wastewater valve

Set the wastewater valve to the open position before producing RO-purified water. Confirm that the wastewater hose is not folded, blocked or compressed.

Connection reminder: Keep the pure-water and wastewater hoses clearly separated. Never place both outlet hoses into the same collection container.

RO Filtration & Water Collection

Position the intake in the selected water source and use steady handle movements to produce purified water and discharge wastewater.

Choose the clearest available source

Select the clearest available water whenever possible. Heavy sediment may increase pumping resistance and reduce the service life of the pre-filter and RO membrane.

Place the pre-filter in the water

Submerge the pre-filter and inlet below the surface. Allow the floaters to keep the intake suspended away from bottom sediment.

Position both outlet hoses

Place the pure-water hose over a clean container. Direct the wastewater hose toward a separate drainage area or wastewater container.

Confirm that the wastewater valve is open

Normal wastewater discharge is required during RO filtration. Do not routinely close the valve while collecting RO-purified water.

Operate the handle with steady strokes

Pull and push the handle repeatedly at a controlled pace. Avoid striking, twisting or forcing the handle during normal pumping.

Allow initial air to leave the system

Air may initially flow from the hoses with the water. Continue pumping until the air decreases and the water flow becomes stable.

Collect water from the pure-water outlet

Collect only the water discharged from the identified pure-water hose. Do not mix it with water from the wastewater outlet.

RO membrane protection: Closing or restricting the wastewater outlet during RO operation may accelerate buildup inside the membrane and reduce filtration performance.

Cleaning After Use

Remove remaining source water, rinse washable components with clean water and prepare the system for drying and storage.

Remove the intake from the source

Take the external pre-filter and inlet hose out of the water before disconnecting or opening any part of the system.

Drain residual water

Empty the inlet hose and both outlet hoses. Pump several times outside the water source to help remove remaining water from the internal pathways.

Close the wastewater valve for cleaning

Place the valve in the closed position when performing the filter-cleaning procedure, unless the product instructions for a specific maintenance task state otherwise.

Remove the handle and filter assembly

Pull the handle upward and loosen the handle nut and outlet nut carefully. Remove the handle and internal filter element without striking or bending the components.

Rinse with clean water only

Rinse the washable disassembled parts, hoses and external pre-filter with clean water. Do not use soap, detergent, bleach or corrosive cleaning materials.

Check the sealing rings

Inspect the sealing rings for dirt, deformation, cracking or displacement before reassembling the filter body.

Cleaning reminder: Do not scrub, puncture, open or apply chemical cleaners directly to the RO membrane or internal filtration materials.

Drying, Storage & Restart

Store the filter and accessories in a clean, dry and cool location, and inspect the system before its next use.

Allow washable components to dry

Place the hoses, pre-filter and washable external components in a clean, shaded and ventilated area after rinsing.

Reassemble the system carefully

Return the filter element, handle, sealing rings and nuts to their correct positions after the components have been cleaned and inspected.

Keep the hoses organized

Drain and coil the silicone hoses without creating sharp bends. Keep the pure-water hose separate from the source-water and wastewater hoses.

Store the components in the bag

Place the pump filter, pre-filter, hoses, floaters, clip and other accessories into the supplied storage bag or another clean container.

Choose a cool and dry storage location

Store the system away from direct sunlight, excessive heat, corrosive substances, dirt and unnecessary pressure.

Release a stiff handle gently

If the handle becomes stiff after storage, rotate it gently from side to side and move it carefully before beginning normal pumping.

Inspect before the next use

Check the hoses, valves, seals, connectors, filter body and outlet identification before placing the system back into service.

Restart reminder: After extended storage, pump until trapped air leaves the system and both the pure-water and wastewater flows become stable.

Wastewater Valve Positions

Use the correct valve position for the selected operating mode

Valve Open RO Purified-Water Production

Keep the wastewater valve open when producing RO-purified water. This allows concentrated wastewater to discharge and helps reduce rapid buildup or blockage inside the RO membrane.

Valve Closed Filtered-Water Mode or Cleaning

Keep the valve closed only when using the product’s specified filtered-water mode or when performing the cleaning procedure. Do not routinely close it during RO purified-water production.

Important Use Notes

Help protect the pump, RO cartridge and water outlets

01 Filter Water Only

Do not use the system for carbonated drinks, sugary liquids, flavored beverages, milk, juice, alcohol or other non-water liquids.

02 Use the External Pre-Filter

Keep the pre-filter attached whenever possible to reduce larger debris before source water enters the main RO cartridge.

03 No Detergent on the Filter

Do not clean the cartridge with soap, detergent, bleach, solvents, corrosive cleaners or abrasive materials.

04 Keep the Wastewater Path Open

During RO operation, check that the wastewater valve and hose are open, unobstructed and able to discharge normally.

05 Separate Clean and Untreated Parts

Prevent the pure-water hose and collection container from touching source water, wastewater or contaminated surfaces.

06 Check the Pre-Filter When Flow Slows

Accumulated sediment may restrict intake. Inspect, clean or replace the pre-filter when pumping resistance increases.

07 Replace the Cartridge on Time

Replace the RO cartridge at its rated capacity or earlier when output, taste, odor, physical condition or performance changes.

08 Do Not Use Damaged Components

Stop using the system if the housing, hoses, valves, connectors, sealing rings or filter cartridge are cracked, deformed or unable to seal correctly.

NSF Certified for Your Health

Independently tested to meet NSF/ANSI 42 & 372 standards, the highest level of trust in water filtration.

Lead-Free Guarantee (NSF/ANSI 372)
Certified lead-free materials to keep your water worry-free.

See Details

NSF Certified for Your Health

Independently tested to meet NSF/ANSI 42 & 372 standards, the highest level of trust in water filtration.

Lead-Free Guarantee (NSF/ANSI 372)
Certified lead-free materials to keep your water worry-free.

See Details

You Also Like

Portable hand-pump water filter with mixed results. Customers said it effectively reduces TDS levels and tastes great when properly used. However, concerns include difficult pumping, questionable virus removal claims, poor material quality, and inconsistent filtration performance. Essential for emergencies but requires effort.

5 stars: 64 (89%)
4 stars: 7 (10%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 1 (1%)

Some of the reviews shown are from related products the merchant grouped with this one.

Replacement Filter Only Green

Geld abgebucht keine Ware

Habe die Ersatzfilter nicht bekommen. Geld wurde abgebucht, Verkäufer antwortet nicht

Hallo Kristina, this order was sent by two separate parcels. The second parcel was later sent than first one, NOT we collect your payment but didn‘t send you product.

Gut

Gut

We love hearing this �� thank you for trusting Purewell with your daily water. Here is to many more clean, fresh glasses!

Very short lived filter that got plugged up fast

If ZERO stars was an option I'd give it a ZERO . . . . The pump filtered the first gallon of a clear-stream water just fine. For gallons 2-3 the flow became slow. By the 4th gallon the flow was 1/10th of the original. The pump never go to the 5th gallon. It just stopped filtering. On the 5th day of my hike I switched to my original filter which worked well for the last 4 years.

Sorry the flow is slower than expected �� filters usually speed back up after a quick back-flush, and heavily silted water can clog them sooner. Contact support@purewell.com and we will help you get it running at full speed.

filtre a eau

correspond a mes attenteslivraison rapide

We love hearing this �� thank you for trusting Purewell with your daily water. Here is to many more clean, fresh glasses!

For when you��re not sure how clean the stream is ��

Worked brilliantly, camping next to stream in the west of Ireland for a few days had fresh clean water every day .Filled up bucket and then filtered into drinking bottles.Flawless.

Thank you so much for the wonderful review! We are thrilled the filter is working out for you �� enjoy every glass of clean water!

Item as described, fast delivery.

Item as described, fast delivery.

Thank you so much for the wonderful review! We are thrilled the filter is working out for you �� enjoy every glass of clean water!

Very nice

Very nice

So happy to hear you are loving your Purewell system. Thanks for taking the time to leave such a thoughtful review!

Quality

Tried and tested water filter,absolutely brilliant.

Thank you so much for the wonderful review! We are thrilled the filter is working out for you �� enjoy every glass of clean water!

No replacement parts to be found

Realize that you cannot purchase replacement parts/filters. None can be found on their website. Looks like it was meant to be disposable define and used to cost fifteen dollars.

Filter life depends on your water source and how often you use it. Contact support@purewell.com with your setup and we will recommend the right replacement schedule.

Small and compact

Great piece of kit. Small enough to pack in a day sack. Looking forward to testing it out.

Thanks a lot for the great review! Stories like yours keep us motivated. Cheers to great-tasting water!

Compact design for easy packing

Like the compact design for easy packing and the plastic storage case doubles as a water cup for the filtered water.

Thank you so much for the wonderful review! We are thrilled the filter is working out for you �� enjoy every glass of clean water!

Water filter

Filtered 7 liters of water. Fell apart in the middle of filtering the next liter. If you purchase this product, be ready to boil water while hiking or bring a back up filtration system.

Thanks for putting it to the test outdoors �� if it did not perform the way you expected on your water source, contact support@purewell.com and we will help you pick the right setup.

Kleiner handlicher Filter

Ein toller Filter, den man ��berall mit hinnehmen kann. Ob Rucksack, Boot,auf Reisen filtert klares gut schmecken des Trinkwasser. Kann ich bedenkenlos weiter empfehlen, funktioniert ohne Strom.

We really appreciate your kind words! Glad to hear it was easy to set up and the water tastes great. Thanks for choosing Purewell!

This is garbage

This product is absolute garbage. Dont buy it. They wont refund your money

We are sorry to hear about this. Reach out to support@purewell.com with your order details and we will get a replacement or refund sorted quickly.

Water filter

Admittedly, the filter isn't the most convenient to use, but it is an essential item in emergency situations. What��s wrong with it? Well, pretty much everything right from the start. Try collecting and filtering water from an open source, and you��ll realize just how awkward it is��even though they didn't skimp on the hoses. After all, it��s the hoses that give you the maneuverability and convenience you need.

Thanks for putting it to the test outdoors �� if it did not perform the way you expected on your water source, contact support@purewell.com and we will help you pick the right setup.

Fabulous water filter system for back packing!

We took this backpacking for 7 people and it worked exceptionally well.Efficient, light and effective.Would like to have direction as to where to purchase filter and other replacement parts.Thank you

So happy to hear you are loving your Purewell system. Thanks for taking the time to leave such a thoughtful review!

Failed in the feild

Personally bad and had me come home early from my wild camping trip. Have 1 seal missing from the pump side and the filter is getting shut off by pressure from the pump so not getting much water. Bench test at home went well but rubbish in the feild. The bag was a plastic bag not the one shown. It pumps ok but gonna try and find a better internal filter.

Sorry it arrived damaged �� that is not the standard we hold ourselves to. Contact support@purewell.com with a photo and we will send a replacement or arrange a refund right away.

Nicht zu empfehlen

Hi, leider nicht zu gebrauchen. Zwei Liter Wasser und dann pumpt es nicht mehr. Sehr schade f��r den Preis.

Thanks for bringing this to our attention. Our support team at support@purewell.com will follow up and take care of it for you.

Filter scheint nur f��r geringe Wassermengen geeignet.

Keine Ahnung was mit dem Filter nicht stimmt. Nach etwa 100 l fast klares Regenwasser ist er so schwerg?ngig, da? er unbrauchbar ist. Vermutlich ist das Filter schon verstopft. Leicht Verf?rbungen vom Regenwasser konnte der Filter auch von Anfang an nicht beseitigen. Filter scheint nur f��r geringe Wassermengen geeignet.

Thank you for flagging this �� that is not the experience we want you to have. Please contact support@purewell.com and our team will make it right.

Not ideal

Impractical. Does not hit much lower TDS at all even when used correctly.

Thanks for the note on filtration performance �� the specialty filters target fluoride, chlorine and PFAS specifically. Contact support@purewell.com and we will recommend the right combination for your water.

Cass�� la 1��re utilisation

S��est cass�� la 1��re utilisation. Tr��s dur �� pomper, puis en 3-4 pompages la partie basse en plastique s��est d��solidaris��e du corps du bo?tier en m��tal

Sorry it arrived damaged �� that is not the standard we hold ourselves to. Contact support@purewell.com with a photo and we will send a replacement or arrange a refund right away.

Top

Top. Fait tout ce qu'elle a �� faire. Simple efficace

So happy to hear you are loving your Purewell system. Thanks for taking the time to leave such a thoughtful review!

Buy something better

Used this on a hiking trip recently. Kept popping the hoses off after about 2 uses. Had to fish the bottom hose out of the water twice. Ok but there's much better options out there

Thanks for putting it to the test outdoors �� if it did not perform the way you expected on your water source, contact support@purewell.com and we will help you pick the right setup.

Missing internal o-rings

Missing internal o-rings and had to be worked on to make operational

We are sorry to hear about this. Reach out to support@purewell.com with your order details and we will get a replacement or refund sorted quickly.

????

????

We love hearing this �� thank you for trusting Purewell with your daily water. Here is to many more clean, fresh glasses!

????

????

We love hearing this �� thank you for trusting Purewell with your daily water. Here is to many more clean, fresh glasses!

Portable Hand-Pump Reverse Osmosis Water Filter

1. 30-Day Return Window

2. Return Eligibility

3. Drinking Water Hygiene Policy

4. Non-Returnable Items

5. Replacement Filters and Consumable Products

6. Gravity Water Filter Systems

7. Countertop Reverse Osmosis Systems

8. Outdoor Water Purifiers

9. Damaged, Defective or Incorrect Items

10. Missing Items

11. Return Shipping Costs

12. How to Start a Return or Exchange

13. Return Address

14. Tracking Number Requirement

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16. Refund Processing

17. Exchanges

18. Promotions, Bundles and Gifts

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20. EU and UK Consumer Rights

21. Warranty Claims vs Returns

22. Water Quality and Performance Expectations

23. Policy Updates

24. Contact Us

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Notify me when available

More Than a Product Claim: Evidence You Can Check

NSF/ANSI 42

What Does It Mean in Everyday Language?

NSF/ANSI/CAN 372

What Does It Mean in Everyday Language?

From a Marketing Claim to Verifiable Evidence

Documentation Available from Purewell

Important Certification Notes

Review the Documents Before You Choose

A Selective Membrane Designed to Reduce Dissolved Solids

How Reverse Osmosis Works

✓ Designed to Help Reduce

i Understand the Filtration Limit

Important Use and Care Notes

Coconut Shell Activated Carbon Designed to Improve Water Taste and Odor

How Activated Carbon Works

✓ Designed to Help Reduce

i Understand the Filtration Limit

Important Use and Care Notes

Product Overview

3-Stage Reverse Osmosis Filtration

Manual Pressure, Multi-Layer Water Treatment

PP Cotton Pre-Filtration

Activated Carbon Filtration

0.0001 μm RO Membrane

Replacement Filters & Components

Maintain Performance with Replaceable Components

Key Product Indicators

Care & Use Notes

Protect the RO Membrane and Keep the System Ready

Set Up, Pump and Collect RO-Purified Water

First-Time Assembly & Setup

RO Filtration & Water Collection

Cleaning After Use

Drying, Storage & Restart

Wastewater Valve Positions

Important Use Notes

NSF Certified for Your Health

NSF Certified for Your Health

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