---
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: "S$127"
currency: SGD
in_stock: true
reviews_count: 10
category: "Purewell"
url: https://www.desertcart.sg/products/421125442-purewell-pf-3-black-3-stage-composite-purification-elements-replacement
store_origin: SG
region: Singapore
---

# 0.01μm ultra-fine pore size 6,000 gallons lifespan per pair NSF/ANSI 42 & 372 certified safety 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:** S$127
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with Purewell’s elite 3-stage 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?** S$127 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/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

- • **Triple-Stage Purity:** Combines hollow fiber membrane, silver ion barrier, and activated carbon for superior taste and safety.
- • **Seamless Compatibility:** Perfect fit for ProOne® Big+, Berkey® Big+, and Purewell systems—no leaks, no fuss.
- • **Long-Lasting Performance:** Up to 6,000 gallons per filter pair means fewer replacements and more peace of mind.
- • **Certified Safe & Lead-Free:** Meets NSF/ANSI 42 & 372 standards, ensuring your water is both clean and toxin-free.
- • **Precision Filtration Power:** Ultra-fine 0.01 micron pores remove 99.9% contaminants for pristine water.

## Overview

The Purewell PF-3 Black 3-Stage Composite Purification Elements are premium replacement filters designed for ProOne® and Berkey® 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 up to 99.9% of chlorine, heavy metals, sediment, and organic compounds. Each 2-pack delivers up to 6,000 gallons of clean, great-tasting water with a leak-proof fit, making it the trusted choice for health-conscious professionals seeking reliable, long-lasting filtration.

## Description

desertcart.com: 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) : Tools & Home Improvement

Review: Filter - Drinking clean water is needed! This slow filter is a big part of our filtration water system. We tried a diff brand and were disappointed in the flow and taste. This Purwell filter is the best!
Review: Tried and true! - I just tried a cheaper brand and ended up throwing them away in one week! This brand ALWAYS works! And lasts 6 months for me! Water tastes great! Will be buying this next time! Very reliable!

## 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 | #14,530 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #14 in Replacement Countertop Water Filters |
| Brand | Purewell |
| Customer Reviews | 4.4 4.4 out of 5 stars (382) |
| Date First Available | March 8, 2022 |
| External Testing Certification | ANSI, NSF |
| Item Weight | 1.48 pounds |
| Item model number | K8012 |
| Material | Activated Carbon, Silver Ion, Hollow Fiber UF Membrane |
| 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 Dimensions | 2.7"D x 2.7"W x 8.6"H |
| Set Name | PF-3 |
| UPC | 799086649837 |
| Unit Count | 2.0 Count |

## Product Details

- **External Testing Certification:** ANSI, NSF
- **Item Weight:** 1.5 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 **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Filter
*by S***A on February 2, 2026*

Drinking clean water is needed! This slow filter is a big part of our filtration water system. We tried a diff brand and were disappointed in the flow and taste. This Purwell filter is the best!

### ⭐⭐⭐⭐⭐ Tried and true!
*by S***N on January 28, 2026*

I just tried a cheaper brand and ended up throwing them away in one week! This brand ALWAYS works! And lasts 6 months for me! Water tastes great! Will be buying this next time! Very reliable!

### ⭐⭐⭐⭐⭐ They work.
*by P***S on January 29, 2026*

They work.

## 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 Singapore*
*Store origin: SG*
*Last updated: 2026-02-18*