---
product_id: 349244447
title: "155247-43 RFC-20BB Carbon Filter (20\" x 4.5\"), 25 Micron"
brand: "pentek"
price: "€ 426.91"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/349244447-155247-43-rfc-20bb-carbon-filter-20-x-4-5
store_origin: GR
region: Greece
---

# Low pressure drop radial flow 25 micron sediment filtration Wide temp range 40-125°F 155247-43 RFC-20BB Carbon Filter (20" x 4.5"), 25 Micron

**Brand:** pentek
**Price:** € 426.91
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your water game with every drop!

## Quick Answers

- **What is this?** 155247-43 RFC-20BB Carbon Filter (20" x 4.5"), 25 Micron by pentek
- **How much does it cost?** € 426.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/349244447-155247-43-rfc-20bb-carbon-filter-20-x-4-5)

## 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

- • **Universal Fit:** Compatible with most standard 20-inch Big Blue housings for easy upgrades.
- • **Effortless Flow:** Radial flow design ensures high water flow up to 2 GPM with minimal pressure loss.
- • **Built to Perform:** Operates reliably across a broad temperature range (40-125°F) for versatile use.
- • **Precision Filtration:** 25 micron rating captures sediment, protecting your home’s water appliances.
- • **Crystal Clear Hydration:** Effectively reduces chlorine, taste, and odor for pure, refreshing water.

## Overview

The Pentek RFC-20BB carbon filter cartridge delivers superior chlorine, taste, and odor reduction with a 25 micron sediment filter. Its radial flow design maintains high flow rates up to 2 gallons per minute at low pressure drop, fitting most 20-inch Big Blue housings. Engineered for residential whole-home or point-of-use systems, it operates efficiently across 40 to 125°F, ensuring clean, great-tasting water throughout your home.

## Description

The Pentek RFC20-BB carbon filter cartridge is designed to reduce chlorine, taste and odor in residential drinking water. In addition to chemical reduction the radial flow technology provides superior flow at low pressure drop suitable for applications requiring high flow such as Point of Entry (whole home) that supply multiple water using appliances. This cartridge also includes a 25 micron rating of which provides basic sediment reduction. This cartridge meets National Sanitation Foundation/American National Standards Institute (NSF/ANSI) standard 42 for material requirements only. Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.Designed for most residential drinking water applications. Pentair water filters are manufactured in the form of replaceable cartridges that fit inside housings designed to perform as a filtration system. Filtration systems can consist of a single stage or multiple stages, using one, two or more types of filter cartridges to reduce multiple contaminants. The performance of filter cartridge is measured by the minimum particle size that is blocked and the type of unwanted contaminants it is designed to reduce. Additional performance factors include the maximum flow rate, and the capacity or amount of water that can be filtered before the filter must be replaced. Water cartridge filters are used in a wide range of drinking water applications including Point of Entry (whole home) installations and Point of Use (undersink applications). Pentair manufactures residential, industrial, and commercial water filtration components and systems. The company, founded in 1966 and headquartered in Minneapolis, MN

## Features

- Effective chlorine, taste and odor reduction with radial flow design provides good flow at low pressure drop
- Nominal filtration rating of 25 micron
- Fits most standard 20-inch Big Blue housings
- Flow rates up to 2 gallons per minute
- Temperature range of 40 to 125 degrees F (4.4 to 51.7 degrees C)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003SRQG0U |
| Best Sellers Rank | #8,466 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #67 in Replacement Under-Sink Water Filters |
| Brand Name | Pentek |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,038) |
| EU Spare Part Availability Duration | 1 Years |
| External Testing Certification | NSF, ANSI |
| Global Trade Identification Number | 00051678247433 |
| Item Dimensions D x W x H | 4.5"D x 4.5"W x 20"H |
| Item Type Name | 20-Inch, Whole House Heavy Duty Radial Flow Carbon Replacement Cartridge with Granular Activated Carbon (GAC) Filter, 20" x 4.5", 25 Micron |
| Item Weight | 2.5 Pounds |
| Manufacturer | Pentair Industries |
| Manufacturer Part Number | 155247-43 |
| Material Type | Granular Activated Carbon |
| Model Number | RFC20-BB |
| Number of Items | 1 |
| Product Benefits | Removes Odor |
| UPC | 051678247433 |
| Unit Count | 1 Count |

## Product Details

- **Material:** Carbon Fibre
- **Product dimensions:** 11.4D x 11.4W x 50.8H centimetres
- **Item weight:** 2.5 Pounds
- **External testing certification:** NSF, ANSI
- **Product benefits:** Reduces Chlorine, Taste, and Odor; Removes Sediment; High Flow Rate

## Images

![155247-43 RFC-20BB Carbon Filter (20" x 4.5"), 25 Micron - Image 1](https://m.media-amazon.com/images/I/61Da7aesdRL.jpg)

## Questions & Answers

**Q: In what way is this filter diffrrent (better?) than the gac-20bb? for whole house chlorine removal before a water softener.**
A: These are both carbon filters, and will fit the same housings, the main difference is how they are constructed, which affects the performance.
RFC20-BB filters offer a radial flow design which greatly reduces the pressure drop (RFC20-BB is rated at 0.9 psi pressure drop at 4 gpm,  while the GAC-20BB you are comparing to is rated at 10 psi pressure drop @ 4gpm).
The RFC20-BB filters also have a higher filtration capacity.  RFC20-BB are rated at >100,000 gallons of chlorine taste and odor reduction at 4gpm,  while the GAC-20BB are rated at 25,000 gallons.

**Q: Would this work with other 20 x 4.5 filter systems, like a replacement for an american plumber wrc25hd20?**
A: RandyYes this filter will work in other systems that take 4"x 20" filter

**Q: This filter is 1/2 " longer then the old one will it still work?**
A: This filter is designed to fit into the 10 inch Big Blue filter housings which is similar in size to most other 10 inch heavy duty filter housings.  We have not made changes to the length of these cartridges, so if you had this model previously, it should still fit correctly.  Not knowing what specific housing you have, I cannot for certain tell if this cartridge will fit.  If you would like further details, please reach out to our technical support team (USA based) at 800-279-9404.

**Q: Is this good enough for a spotless car wash filter?**
A: The RFC can be used as pretreatment for equipment that actually provides spotless rinse. This filter in itself does not provide spotless rinse.

## Frequently Bought Together

- 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
- Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-04-23*