---
product_id: 3678657
title: "Pentair Pentek RFFE20-BB Big Blue Water Filter, 20-Inch, Whole House Radial Flow Iron Reduction Replacement Cartridge, 20\" x 4.5\", White"
brand: "pentek"
price: "51809 som"
currency: KGS
in_stock: true
category: "Pentek"
url: https://www.desertcart.kg/products/3678657-pentair-pentek-rffe20-bb-big-blue-water-filter-20-inch
store_origin: KG
region: Kyrgyzstan
---

# Lasts ~26,000 gallons or 3-4 months Reduces up to 3 ppm dissolved iron Fits all 20-inch Big Blue housings Pentair Pentek RFFE20-BB Big Blue Water Filter, 20-Inch, Whole House Radial Flow Iron Reduction Replacement Cartridge, 20" x 4.5", White

**Brand:** pentek
**Price:** 51809 som
**Availability:** ✅ In Stock

## Summary

> 💧 Upgrade your water, upgrade your life — taste the difference with every drop!

## Quick Answers

- **What is this?** Pentair Pentek RFFE20-BB Big Blue Water Filter, 20-Inch, Whole House Radial Flow Iron Reduction Replacement Cartridge, 20" x 4.5", White by pentek
- **How much does it cost?** 51809 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/3678657-pentair-pentek-rffe20-bb-big-blue-water-filter-20-inch)

## Best For

- pentek enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Performance:** Handles roughly 26,000 gallons, perfect for busy households with minimal maintenance.
- • **Rust Stains? Not Anymore:** Effectively reduces orange and brown iron stains on sinks, tubs, and fixtures.
- • **Chemical-Free Iron Reduction:** Uses manganese activated zeolite to purify without adding harmful chemicals.
- • **Seamless Big Blue Compatibility:** Designed to fit any 20-inch Big Blue or heavy-duty housing for easy upgrades.
- • **Pure Taste, Zero Metallic Aftertaste:** Eliminates up to 3 ppm iron for crisp, clean water throughout your home.

## Overview

The Pentair Pentek RFFE20-BB is a 20-inch radial flow iron reduction cartridge designed for whole-house water filtration. It reduces dissolved iron up to 3 ppm, improving water taste and preventing rust stains on fixtures. Compatible with all 20-inch Big Blue housings, it uses manganese activated zeolite for chemical-free purification and lasts approximately 26,000 gallons or 3-4 months for an average family of four.

## Description

The Pentair Pentek RFFE20-BB is a 20-inch radial flow iron reduction cartridge that gives well and municipal water users an easy way to reduce dissolved iron. It reduces up to 3 ppm of dissolved iron, cutting the metallic taste iron causes for cleaner, better-tasting water.By lowering iron, it helps clear the orange and brown staining iron leaves on sinks, toilets, tubs and fixtures, and lowers the chance of iron-related damage to pipes and water heaters. It adds no harmful chemicals and is safe for drinking water.Designed for the Pentek 20-inch Big Blue housing, it measures 20" x 4.5" and installs on the main cold-water line after the pressure tank or meter; for best results, run a sediment pre-filter ahead of it and a carbon post-filter after it. Expect roughly 26,000 gallons at 3 ppm iron, about 3 to 4 months for a family of four, and longer at lower iron. Protect from freezing and replace when metallic taste or staining returns.

## Features

- IMPROVES WATER TASTE - Reduces up to 3 ppm of dissolved iron to cut the metallic taste it causes, for cleaner, better-tasting water from well or municipal supplies throughout your home.
- HELPS REDUCE RUST STAINING - Helps clear the orange and brown staining that iron leaves on sinks, toilets, tubs and fixtures, and lowers the chance of iron damage to pipes and water heaters.
- RADIAL FLOW IRON REDUCTION - Designed for the 20-inch Big Blue housing and installed on the main cold-water line after the pressure tank or meter. For best results, pair with a sediment pre-filter and a carbon post-filter.
- FITS ALL 20-INCH BIG BLUE HOUSINGS - Measures 20" x 4.5" and drops into any 20" Big Blue or other heavy-duty housing, replacing any 20" x 4.5" iron reduction cartridge. Adds no harmful chemicals and is safe for drinking water.
- LONG SERVICE LIFE - Handles roughly 26,000 gallons at 3 ppm iron, about 3 to 4 months for a household of four, and lasts longer at lower iron levels. Replace when metallic taste or staining returns.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0025PPF76 |
| Best Sellers Rank | #42,729 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #260 in Replacement Under-Sink Water Filters |
| Brand | Pentek |
| Brand Name | Pentek |
| Customer Reviews | 4.6 out of 5 stars 567 Reviews |
| External Testing Certification | NSF |
| Global Trade Identification Number | 00051678263037 |
| Item Dimensions D x W x H | 4.5"D x 20"W x 4.5"H |
| Item Type Name | 20-Inch, Whole House Radial Flow Iron Reduction Replacement Cartridge, 20" x 4.5" |
| Item Weight | 3.08 kg |
| Manufacturer | Pentair Industries |
| Manufacturer Part Number | 155263-43 |
| Material | Manganese Activated Zeolite |
| Material Type | Manganese Activated Zeolite |
| Model Number | RFFE20-BB |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Benefits | Removes Impurities |
| Product Dimensions | 4.5"D x 20"W x 4.5"H |
| Set Name | Single |
| UPC | 807032975227 115971040907 851905129521 163120786473 182682383944 700999878597 808112763284 160921462131 806294987023 132017517186 051678263037 102930750250 809390005905 798527580180 |
| Unit Count | 1 Count |

## Product Details

- **External Testing Certification:** NSF
- **Item Weight:** 3.08 kg
- **Material:** Manganese Activated Zeolite
- **Product Benefits:** Removes Impurities
- **Product Dimensions:** 4.5"D x 20"W x 4.5"H

## Images

![Pentair Pentek RFFE20-BB Big Blue Water Filter, 20-Inch, Whole House Radial Flow Iron Reduction Replacement Cartridge, 20" x 4.5", White - Image 1](https://m.media-amazon.com/images/I/41hs6BA+QyS.jpg)
![Pentair Pentek RFFE20-BB Big Blue Water Filter, 20-Inch, Whole House Radial Flow Iron Reduction Replacement Cartridge, 20" x 4.5", White - Image 2](https://m.media-amazon.com/images/I/81Nl6X4thyL.jpg)
![Pentair Pentek RFFE20-BB Big Blue Water Filter, 20-Inch, Whole House Radial Flow Iron Reduction Replacement Cartridge, 20" x 4.5", White - Image 3](https://m.media-amazon.com/images/I/71ctvQjH1iL.jpg)
![Pentair Pentek RFFE20-BB Big Blue Water Filter, 20-Inch, Whole House Radial Flow Iron Reduction Replacement Cartridge, 20" x 4.5", White - Image 4](https://m.media-amazon.com/images/I/715WvrH7dOL.jpg)
![Pentair Pentek RFFE20-BB Big Blue Water Filter, 20-Inch, Whole House Radial Flow Iron Reduction Replacement Cartridge, 20" x 4.5", White - Image 5](https://m.media-amazon.com/images/I/71ZZBSPbwML.jpg)

## Available Options

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

## Questions & Answers

**Q: Can i use this instead of the home master crffe-20bb iron filter? I have the 3 stage Home Master water filter system, these look to be the same size.**
A: Did it fit your home master filtration? Did the filter work as good as the crffe-20bb iron filter? It is such big difference in price I am tempted to buy this instead of the crffe-20bb

**Q: What is the flow rate in GPM through this filter**
A: 6 GPM (gallons per minute) is recommended flow rate.

**Q: my water has a slight yellow tint when tub filled and leaves orange stain around drain. It only has very slight odour. Will your filter remove this. h**
A: There are two parts to the answer. Yes the iron filter removes most of the yellow and smell. When a carbon block is then used, the water is very clean and good.

**Q: Does it have Warning 65 on it?**
A: It does have a prop 65 warning on it but I do not know if it is because of the filter or the rubber washers that are used to seal the filter in the housing.

## Frequently Bought Together

- Pentair Pentek RFFE20-BB Big Blue Water Filter, 20-Inch, Whole House Radial Flow Iron Reduction Replacement Cartridge, 20" x 4.5", White
- Pentair Pentek RFC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Heavy Duty Radial Flow Carbon Replacement Cartridge with Granular Activated Carbon (GAC) Filter, 20" x 4.5", 25 Micron
- Pentair Pentek DGD-5005-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 5 Micron, Pack of 1, White

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.kg/products/3678657-pentair-pentek-rffe20-bb-big-blue-water-filter-20-inch](https://www.desertcart.kg/products/3678657-pentair-pentek-rffe20-bb-big-blue-water-filter-20-inch)

---

*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-11-13*