---
product_id: 421125442
title: "Purewell PF-3 Black 3-Stage Composite Purification Elements, Replacement Filters for ProOne® and Berkey® Filters, ProOne® or Berkey® Big+ Water Filter System and Purewell System (2 Pack, K Series)"
brand: "purewell"
price: "£69.04"
currency: GBP
in_stock: true
reviews_count: 12
category: "Purewell"
url: https://www.desertcart.co.uk/products/421125442-purewell-pf-3-black-3-stage-composite-purification-elements-replacement
store_origin: GB
region: United Kingdom
---

# 0.01μm ultra-fine pore size 6,000 gallons lifespan per filter pair NSF/ANSI 42 & 372 certified filtration Purewell PF-3 Black 3-Stage Composite Purification Elements, Replacement Filters for ProOne® and Berkey® Filters, ProOne® or Berkey® Big+ Water Filter System and Purewell System (2 Pack, K Series)

**Brand:** purewell
**Price:** £69.04
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate Your Hydration Game with Purewell’s Precision Filtration!

## Quick Answers

- **What is this?** Purewell PF-3 Black 3-Stage Composite Purification Elements, Replacement Filters for ProOne® and Berkey® Filters, ProOne® or Berkey® Big+ Water Filter System and Purewell System (2 Pack, K Series) by purewell
- **How much does it cost?** £69.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/421125442-purewell-pf-3-black-3-stage-composite-purification-elements-replacement)

## Best For

- purewell enthusiasts

## Why This Product

- Trusted purewell brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Freshness:** Each filter pair delivers up to 6,000 gallons of clean water—lasting about a year for typical household use.
- • **Seamless Compatibility:** Perfectly fits ProOne Big+, Berkey Big II, and Purewell gravity systems with leak-proof design for hassle-free replacement.
- • **Triple-Action Filtration:** Advanced 3-stage composite filter combines activated carbon, silver ions, and UF membrane for superior impurity removal.
- • **Certified Safe & Lead-Free:** Meets NSF/ANSI 42 & 372 standards, ensuring your water is free from chlorine, heavy metals, and harmful chemicals.
- • **Precision Purification Power:** Ultra-fine 0.01 micron hollow fiber membrane removes 99.9% of contaminants for crystal-clear water.

## Overview

The Purewell PF-3 Black 3-Stage Composite Purification Elements are premium replacement filters designed for ProOne and Berkey gravity water systems. Featuring an ultra-fine 0.01 micron hollow fiber membrane, silver ion barrier, and activated carbon block, these NSF/ANSI certified filters remove 99.9% of chlorine, heavy metals, sediment, and organic compounds. Each 2-pack provides up to 6,000 gallons of clean, great-tasting water with a leak-proof fit, making it an essential upgrade for health-conscious professionals seeking reliable, long-lasting water purification.

## Description

A Healthier Home Starts Here

Review: Great Gravity filter replacement - Work great on our gravity filter. Lasts about a year with just 2 people.
Review: Quality product replacement for my Purewell - Bought this pack to replace in my Purewell gravity water system. Easy to install and great quality. Highly recommend. Water tastes great. Elevates my well water to excellent taste and convenient to use

## Features

- [Compatible Models] The Purewell 3-Stage Composite Filters can be replacement for ProOne Big+ or Big II Series and Berkey BB9-2 black filters, Travel, Big, Royal, Imperial, Light, Crown Berkey Series. It serves as the original filter for the Purewell gravity water filtration system. Thanks to its exquisite design, this filter achieves great fit and no leakage. The water filter is not sourced by or sponsored by Berkey or ProOne. Purewell is an independent brand.
- [Advanced 3-Stage Filtration] Our composite filter is certified to NSF/ANSI 42, featuring a high-performance, 3-stage filtration technology. It combines a 0.01μm hollow fiber UF membrane, silver ion barrier, and high-density activated carbon block, providing up to 99.9% removal efficiency for chlorine, rust, sediment, organic compounds, and heavy metals. Additionally, the filter meets NSF/ANSI 372 standards for lead-free materials, ensuring safe and reliable filtration for daily use.
- [Technical Innovation] Exceptional Small Pore Size - Purewell’s filtration elements feature an ultra-fine pore size of 0.01 microns, a significant improvement over the typical 0.2 microns found in other brands. This smaller pore size effectively removes 99.9% of contaminants, including ultra-fine particles, thus greatly reducing potential health risks. A finer pore size means greater filtration precision, providing you with cleaner and safer drinking water.
- [Extended Lifespan] Each pair of carbon composite filters provides up to 6,000 gallons of fresh water. For optimal performance, we recommend replacing the filter every 6,000 gallons, though this may vary based on your water quality. Note: TDS levels do not fully indicate water quality, and our filters are not designed to lower TDS levels.
- [Risk-free Purchase] For optimal filtration, please follow the pre-filtration instructions in the manual before installing the filter. If you experience clogging, slow flow, unusual odors, or compatibility issues, please contact us immediately for a free, quick replacement service.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09NPRGM4H |
| Best Sellers Rank | #13,180 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Replacement Countertop Water Filters |
| Brand | Purewell |
| Brand Name | Purewell |
| Customer Reviews | 4.5 out of 5 stars 462 Reviews |
| External Testing Certification | ANSI, NSF |
| Included Components | Composite Black Filter*2 |
| Item Dimensions D x W x H | 2.7"D x 2.7"W x 8.6"H |
| Item Weight | 1.48 Pounds |
| Manufacturer Part Number | PB 2 |
| Material | Activated Carbon, Silver Ion, Hollow Fiber UF Membrane |
| Material Type | Activated Carbon, Silver Ion, Hollow Fiber UF Membrane |
| Model Number | K8012 |
| Number of Items | 2 |
| Product Benefits | Effectively reduces chlorine, eliminates impurities, and maintains optimal flow rate with smaller filter pore size and long lifespan Product Benefits Effectively reduces chlorine, eliminates impurities, and maintains optimal flow rate with smaller filter pore size and long lifespan See more |
| Product Dimensions | 2.7"D x 2.7"W x 8.6"H |
| Set Name | Black Filters 2 Pack |
| UPC | 799086649837 |
| Unit Count | 2.0 Count |

## Product Details

- **External Testing Certification:** ANSI, NSF
- **Item Weight:** 1.48 Pounds
- **Material:** Activated Carbon, Silver Ion, Hollow Fiber UF Membrane
- **Product Dimensions:** 2.7"D x 2.7"W x 8.6"H

## Images

![Purewell PF-3 Black 3-Stage Composite Purification Elements, Replacement Filters for ProOne® and Berkey® Filters, ProOne® or Berkey® Big+ Water Filter System and Purewell System (2 Pack, K Series) - Image 1](https://m.media-amazon.com/images/I/71gVN234RjL.jpg)

## Available Options

This product comes in different **Size, Set** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Gravity filter replacement
*by S***E on May 22, 2026*

Work great on our gravity filter. Lasts about a year with just 2 people.

### ⭐⭐⭐⭐⭐ Quality product replacement for my Purewell
*by L***R on June 1, 2026*

Bought this pack to replace in my Purewell gravity water system. Easy to install and great quality. Highly recommend. Water tastes great. Elevates my well water to excellent taste and convenient to use

### ⭐⭐⭐⭐⭐ Great product!
*by J***I on May 6, 2026*

Performs as described

## Frequently Bought Together

- Purewell PB-2 Black 3-Stage Composite Purification Elements, Replacement Filters for ProOne® and Berkey® Filters, ProOne® Big+ or Berkey® Big+ Gravity Water Filter System and Purewell System (2 Pack)
- Purewell 3-Stage 0.01μm Ultra-Filtration Gravity Water Filter System, NSF/ANSI 42&372 Certification, 304 Stainless Steel Countertop System with 2 Filters and Stand, Reduce 99% Chlorine, 2.25G, PW-OB
- Aquatabs 397mg Water Purification Tablets (100 Pack). Water Filtration System for, Camping, Boating, Emergencies, Survival, RVs, and Marine-Use. Easy to Use Treatment and Disinfection.

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-24*