---
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: "218478CFA"
currency: XOF
in_stock: true
reviews_count: 8
url: https://www.desertcart.sn/products/3678657-pentair-pentek-rffe20-bb-big-blue-water-filter-20-inch
store_origin: SN
region: Senegal
---

# Replace every 3 months for optimal performance Whole house main water line coverage Filters up to 3 PPM dissolved iron 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:** 218478CFA
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your home’s water game—because clean water is the new luxury.

## 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?** 218478CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/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

- • **Fits Like a Glove:** Compatible with all 20" Big Blue housings, making upgrades and replacements seamless.
- • **Well Water’s Best Friend:** Specialized radial flow design tackles iron in well water, ensuring fresh water from every tap.
- • **Rust Stain? Not on My Watch:** Prevents rust stains on sinks, toilets, and plumbing fixtures—protect your surfaces and appliances.
- • **Set It and Forget It (Quarterly):** Recommended replacement every 3 months keeps your family’s water consistently pure and iron-free.
- • **Pure Taste, Zero Metallic Aftertaste:** Eliminates up to 3 PPM dissolved iron for crisp, clean water throughout your home.

## Overview

The Pentair Pentek RFFE20-BB is a 20-inch whole house radial flow iron reduction cartridge designed to filter up to 3 PPM of dissolved iron, eliminating metallic taste and preventing rust stains. Compatible with all 20" Big Blue housings, it’s ideal for well water systems and requires replacement every 3 months for optimal performance, ensuring fresh, clean water throughout your home.

## Description

Pentair Pentek RFFE20-BB Big Blue Water Filter, 20-Inch, Whole House Radial Flow Iron Reduction Replacement Cartridge, 20" x 4.5", White, greatly improves taste by filtering up to 3 PPM of dissolved iron and eliminates metallic taste. It prevents rust stains on sinks, toilets, and plumbing fixtures and prevents appliance damage. It provides whole house filtering on main water line and works great for well water. It fits all 20" Big Blue Housing and can replace any 4.5" x 20" Iron reducing filter. It can be replaced every 3 months for 3PPM reduction with a family of four.

## Features

- GREATLY IMPROVES TASTE by filtering up to 3 PPM of dissolved iron. Eliminate metallic taste
- PREVENT RUST STAINS on sinks, toilets and plumbing fixtures and prevent appliance damage.
- WHOLE HOUSE FILTERING on main water line, works great for well water.
- FITS ALL 20" Big Blue Housing and can replace any 4.5" x 20" Iron reducing filter.
- REPLACE EVERY 3 MONTHS for 3PPM reduction with a family of four. See image chart for more details.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Manganese Activated Zeolite |
| Product Dimensions | 4.5"D x 20"W x 4.5"H |
| Item Weight | 3.08 Kilograms |
| External Testing Certification | NSF |
| Product Benefits | Removes Impurities |
| Brand | Pentek |
| Set Name | Single |
| UPC | 807032975227 115971040907 851905129521 163120786473 182682383944 700999878597 808112763284 160921462131 806294987023 132017517186 051678263037 102930750250 809390005905 798527580180 |
| Global Trade Identification Number | 00051678263037 |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Manufacturer | Pentair Industries |
| Part Number | 155263-43 |
| Item Weight | 6.78 pounds |
| Item model number | RFFE20-BB |
| Is Discontinued By Manufacturer | No |
| Size | Pack of 1 |
| Color | White |
| Style | 20" x 4.5" |
| Pattern | Filter |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Cutting Diameter | 4.5 Inches |
| Certification | NSF |
| Batteries Included? | No |
| Batteries Required? | No |
| Assembled Diameter | 4.5 Inches |

## Product Details

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

## 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)

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great filter for well.
*by M***G on August 3, 2025*

Lasted longer than expected and with the iron in our well, did a good job.

### ⭐⭐⭐⭐⭐ It just plain works!
*by B***S on May 30, 2025*

I use a sediment filter (DGD-2501) in combination with this Iron Filter (RFFE10-BB) and carbon block filter (EP-BB) in my house water system. Best thing I've done. These just plain work. Change the filters on a yearly basis since it is just two of us in the household...no more brown (iron) deposits/stains !!

### ⭐⭐⭐⭐⭐ Whole house water filtration system.
*by H***F on November 5, 2015*

I just finished installing a complete whole house water filtration system. I used only pentek filters and housings. I'm very happy with the performance of my system and how well it all went together. Here's a breakdown of the all the components I used in my system. I went to great length researching what works and found it wasn't easy going thru each pentek filter and it's function. The goal was to reduce some sediment, iron deposits from old iron pipes and remove any chemical taste. The water tastes great now and is crystal clear.Components:-Pentek Big Blue 20" Filter Housings-Housing Bracket for Big blue 10" and 20" filterFilters IN ORDER:1-Pentek DGD-2501-20 Spun Polypropylene Filter 20 micron dual stage to 1 micron.2-Pentek 155263, RFFE20-BB Radial Flow Iron Removing Filter3-Pentek RFCC-BB Carbon Filteryou can add another Filter after the Carbon for media if you want. Not necessary but is an option or run 2 sediment filters in beginning of the system.-Various copper pipes and PVC pipes to build the system. I highly recommend a bypass valve and a way to shut off the water to your filters if you need to change them without losing water pressure to the house.-I experienced nearly 0 PSI drop thru the 3 filters and no noticeable change in flow rate.

## 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

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-16*