---
product_id: 452546288
title: "Pentair Pentek RFC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Heavy Duty Radial Flow Carbon Replacement Cartridge with Granular Carbon (GAC) Filter, 20\" x 4.5\", 25 Micron, Pack of 6"
brand: "pentek"
price: "€ 2141.39"
currency: EUR
in_stock: false
reviews_count: 1
category: "Pentek"
url: https://www.desertcart.gr/products/452546288-pentair-pentek-rfc-20bb-big-blue-carbon-water-filter-20
store_origin: GR
region: Greece
---

# 100,000 gallon capacity Radial flow tech for low pressure drop NSF/ANSI Standard 42 certified Pentair Pentek RFC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Heavy Duty Radial Flow Carbon Replacement Cartridge with Granular Carbon (GAC) Filter, 20" x 4.5", 25 Micron, Pack of 6

**Brand:** pentek
**Price:** € 2141.39
**Availability:** ❌ Out of Stock

## Summary

> 💧 Elevate your water game—because your home deserves the best sip!

## Quick Answers

- **What is this?** Pentair Pentek RFC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Heavy Duty Radial Flow Carbon Replacement Cartridge with Granular Carbon (GAC) Filter, 20" x 4.5", 25 Micron, Pack of 6 by pentek
- **How much does it cost?** € 2141.39 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/452546288-pentair-pentek-rfc-20bb-big-blue-carbon-water-filter-20)

## 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

- • **Effortless Flow:** Radial flow design keeps water pressure high while filtering deeply
- • **Whole Home Purity:** Eliminates chlorine taste, odor & sediment for fresher water everywhere
- • **Year-Long Performance:** Filters up to 100,000 gallons before replacement—set it and forget it
- • **Certified Peace of Mind:** NSF/ANSI 42 certification guarantees safety and structural integrity
- • **Plug & Play Compatibility:** Fits all standard 20" Big Blue housings for seamless upgrades

## Overview

The Pentair Pentek RFC-20BB is a heavy-duty 20-inch whole house carbon water filter cartridge featuring advanced radial flow technology and granular activated carbon. It reduces chlorine taste, odor, sediment, and contaminants with minimal pressure loss, delivering up to 100,000 gallons or one year of clean water. Compatible with standard 20" Big Blue housings and NSF/ANSI Standard 42 certified, it ensures reliable, long-lasting filtration for superior water quality throughout your home.

## Description

Upgrade your home's water quality with the Pentair Pentek RFC-20BB Whole House Carbon Water Filter. This high-capacity filter utilizes advanced radial flow technology and granular activated carbon (GAC) to effectively reduce chlorine taste and odor, sediment, and other contaminants from your water supply. The unique design ensures low pressure drop and minimizes carbon fines, providing efficient filtration without sacrificing water pressure. With a 100,000 gallon capacity, this filter offers long-lasting performance for up to one year before replacement is needed. Compatible with standard 20" Big Blue filter housings, the RFC-20BB is ideal for whole house filtration systems and point-of-entry applications. Constructed with a 70-micron porous polyethylene outer shell, polypropylene core, and durable endcaps, this filter is built to withstand the demands of whole house filtration. NSF/ANSI Standard 42 certified for material safety and structural integrity, the Pentair Pentek RFC-20BB delivers cleaner, better-tasting water throughout your entire home with confidence and reliability.

Review: Helps with SO2 (Sulfur oxide)

## Features

- CLEANER, BETTER-TASTING WATER: Effectively reduces chlorine taste and odor, sediment, and other contaminants for improved water quality throughout your entire home
- HIGH-PERFORMANCE DESIGN: Unique radial flow technology ensures low pressure drop and minimal carbon fines, providing efficient filtration without sacrificing water pressure
- LONG-LASTING FILTRATION: 100,000 gallon capacity offers up to one year of whole house water filtration before replacement is needed
- VERSATILE COMPATIBILITY: Fits standard 20" Big Blue filter housings and replaces most 20" x 4.5" carbon cartridges for easy installation and maintenance
- CERTIFIED QUALITY: NSF/ANSI Standard 42 certified for material safety and structural integrity, ensuring reliable performance and peace of mind

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09MSWW43N |
| Brand | pentek |
| Customer Reviews | 5.0 out of 5 stars 7 Reviews |
| Enclosure Material | Polypropylene (PP) Polyethylene (PE) |
| External Testing Certification | NSF |
| Global Trade Identification Number | 30051678247434 |
| Included Components | Carbon Water Filter |
| Item Dimensions D x W x H | 11.4D x 11.4W x 50.8H Centimeters |
| Item Type Name | Carbon Water Filter |
| Item Weight | 29.25 Pounds |
| Manufacturer | Pentair |
| Material | Polypropylene (PP) Polyethylene (PE) |
| Model number | RFC-20BB |
| Product Benefits | Reduces Sediment |
| Product Dimensions | 11.4D x 11.4W x 50.8H Centimeters |
| Unit Count | 6.0 Count |

## Product Details

- **Material:** Polypropylene (PP) Polyethylene (PE)
- **Product Dimensions:** 11.4D x 11.4W x 50.8H Centimeters
- **Item Weight:** 29.25 Pounds
- **External Testing Certification:** NSF
- **Product Benefits:** Reduces Sediment

## Images

![Pentair Pentek RFC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Heavy Duty Radial Flow Carbon Replacement Cartridge with Granular Carbon (GAC) Filter, 20" x 4.5", 25 Micron, Pack of 6 - Image 1](https://m.media-amazon.com/images/I/61yeSLMKuQL.jpg)
![Pentair Pentek RFC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Heavy Duty Radial Flow Carbon Replacement Cartridge with Granular Carbon (GAC) Filter, 20" x 4.5", 25 Micron, Pack of 6 - Image 2](https://m.media-amazon.com/images/I/81Nl6X4thyL.jpg)
![Pentair Pentek RFC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Heavy Duty Radial Flow Carbon Replacement Cartridge with Granular Carbon (GAC) Filter, 20" x 4.5", 25 Micron, Pack of 6 - Image 3](https://m.media-amazon.com/images/I/71U6dVnaq4L.jpg)
![Pentair Pentek RFC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Heavy Duty Radial Flow Carbon Replacement Cartridge with Granular Carbon (GAC) Filter, 20" x 4.5", 25 Micron, Pack of 6 - Image 4](https://m.media-amazon.com/images/I/718q5kklHcL.jpg)
![Pentair Pentek RFC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Heavy Duty Radial Flow Carbon Replacement Cartridge with Granular Carbon (GAC) Filter, 20" x 4.5", 25 Micron, Pack of 6 - Image 5](https://m.media-amazon.com/images/I/71ZZBSPbwML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Helps with SO2 (Sulfur oxide)
*by I***Y on 3 February 2024*



## Frequently Bought Together

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-25*