---
product_id: 253575594
title: "Pentair CBC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 20\" x 4.5\", 0.5 Micron"
brand: "pentek"
price: "1611 Lei"
currency: RON
in_stock: true
reviews_count: 5
category: "Pentek"
url: https://www.desertcart.ro/products/253575594-pentair-cbc-20bb-big-blue-carbon-water-filter-20-inch
store_origin: RO
region: Romania
---

# Fits all 20" Big Blue housings 0.5 micron ultra-fine filtration 150,000 gallon high capacity lifespan Pentair CBC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 20" x 4.5", 0.5 Micron

**Brand:** pentek
**Price:** 1611 Lei
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your home’s water game — because your family deserves nothing less!

## Quick Answers

- **What is this?** Pentair CBC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 20" x 4.5", 0.5 Micron by pentek
- **How much does it cost?** 1611 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/253575594-pentair-cbc-20bb-big-blue-carbon-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

- • **Built to Last:** Massive 150,000-gallon capacity means fewer replacements, less hassle
- • **Precision Filtration:** 0.5 micron carbon block traps fine sediments and contaminants with surgical accuracy
- • **Certified Peace of Mind:** NSF International tested and certified for trusted water quality assurance
- • **Crystal Clear Hydration:** Eliminates chlorine & odors for pure, refreshing water every time
- • **Universal Compatibility:** Seamlessly fits all standard 20" Big Blue and heavy-duty housings

## Overview

The Pentek Pentair CBC-20BB is a 20-inch whole house carbon block water filter cartridge featuring bonded powdered activated carbon for superior taste and odor removal. With a fine 0.5 micron filtration rating, it effectively reduces chlorine, sediment, and other contaminants. Designed to fit all standard 20" Big Blue housings, it boasts a high capacity of 150,000 gallons, ensuring up to one year of reliable, NSF-certified water purification for residential and commercial use.

## Description

Pentair Pentek CBC Series Cartridges are highly effective at reducing unwanted bad taste & odor and chlorine taste & odor from potable drinking water. CBC Series Cartridges are highly effective at reducing unwanted bad taste & odor, chlorine taste & odor and other contaminants. CBC Series Cartridges are an ideal choice for a wide range of residential, food service, commercial and industrial applications. They also make excellent polishing filters or pre-filters in applications requiring fine filtration and high capacity.

Review: Why did you pick this product vs others?: This is a direct brand replacement. I believe it is the best value filter you can get. It replaced our last filter we have been using for a year, way beyond it's volume and expiration period and still removes most of that reservoir water smell from the tap. This replacement along with a Brita filter pitcher for a fringe improvement gives us near snow melt well water quality you get in the high mountains in the spring. Our tap water isn't anywhere near the hard water you get from a southern California tap but has a bit of lake water smell, occasional mold fungus that immediately starts growing on the toilet bowl with a lot of new PVC pipe leaching into it, while on it's way here. Following any fungus blasts some kind of fungicide usually follows. Needless to say, a chemical reducing .5 micron biological safe water filter is a must here. This is the one that has led the pack for us.
Review: Conforme et facile d’installation

## Features

- PREMIUM HIGH-CAPACITY SMALL PARTICULATE REDUCTION of bad taste & odor, and chlorine taste & odor to provide great tasting drinking water
- FITS ALL 20" Big Blue or other heavy duty housings and can replace any 20" x 4.5" carbon filter cartridge
- EFFECTIVE AT FILTERING fine sediment chlorine taste and odor
- NSF INTERNATIONAL tested and certified for your peace of mind
- 150,000 GALLON CAPACITY. Replace every 1 year or when you notice a drop in water pressure or water quality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00310OXUY |
| Best Sellers Rank | #38,779 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #140 in Replacement Water Filters |
| Item model number | CBC20-BB |
| Manufacturer | Pentair Industries |
| Product Dimensions | 11.76 x 50.17 x 11.76 cm; 2.27 kg |

## Product Details

- **External testing certification:** NSF, ANSI
- **Item weight:** 2.27 kg
- **Material:** Extruded Carbon Block
- **Product benefits:** Reduces Chlorine
- **Product dimensions:** 11.8D x 50.2W x 11.8H centimeters

## Images

![Pentair CBC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 20" x 4.5", 0.5 Micron - Image 1](https://m.media-amazon.com/images/I/61Ds35pKjeL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***W on 13 July 2025*

Why did you pick this product vs others?: This is a direct brand replacement. I believe it is the best value filter you can get. It replaced our last filter we have been using for a year, way beyond it's volume and expiration period and still removes most of that reservoir water smell from the tap. This replacement along with a Brita filter pitcher for a fringe improvement gives us near snow melt well water quality you get in the high mountains in the spring. Our tap water isn't anywhere near the hard water you get from a southern California tap but has a bit of lake water smell, occasional mold fungus that immediately starts growing on the toilet bowl with a lot of new PVC pipe leaching into it, while on it's way here. Following any fungus blasts some kind of fungicide usually follows. Needless to say, a chemical reducing .5 micron biological safe water filter is a must here. This is the one that has led the pack for us.

### ⭐⭐⭐⭐ Review
*by C***N on 8 December 2019*

Conforme et facile d’installation

### ⭐⭐⭐⭐⭐ Review
*by F***D on 5 October 2017*

Been using these as our second stage filter in our home system for many years now (first stage is polypropylene filter). 0.5 micron is much finer filtering than what you typically find for a carbon block filter. The extra cost is worth it, I think.

## Frequently Bought Together

- Pentair Pentek CBC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 20" x 4.5", 0.5 Micron
- Pentair Pentek P5 Sediment Water Filter, 10-Inch, Under Sink Spun-Bonded Polypropylene Replacement Cartridge, 10" x 2.5", 5 Micron
- Pentair Pentek EPM-10 Carbon Water Filter, 10-Inch, Under Sink Modified Epsilon Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 10" x 2.5", 10 Micron

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-15*