---
product_id: 451751528
title: "Pentair Pentek EP-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\", 5 Micron, Pack of 4"
brand: "pentek"
price: "฿33728"
currency: THB
in_stock: true
reviews_count: 13
category: "Pentek"
url: https://www.desertcart.co.th/products/451751528-pentair-pentek-ep-20bb-big-blue-carbon-water-filter-20
store_origin: TH
region: Thailand
---

# Fits all 20" Big Blue housings 5 Micron filtration precision 44,000 gallon long-lasting capacity Pentair Pentek EP-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", 5 Micron, Pack of 4

**Brand:** pentek
**Price:** ฿33728
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your home’s water game with pure, powerful filtration!

## Quick Answers

- **What is this?** Pentair Pentek EP-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", 5 Micron, Pack of 4 by pentek
- **How much does it cost?** ฿33728 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/451751528-pentair-pentek-ep-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

- • **Clog-Resistant Design:** High porosity structure prevents early plugging, maximizing filter lifespan and flow rate.
- • **Year-Long Performance:** Impressive 44,000-gallon capacity means fewer replacements and consistent water purity.
- • **Certified Peace of Mind:** NSF International tested and certified to ensure top-tier water quality and safety.
- • **Crystal-Clear Hydration:** Advanced 5-micron carbon block removes chlorine taste & odor for pure, refreshing water.
- • **Universal Fit, Zero Hassle:** Seamlessly replaces any 20" x 4.5" carbon filter cartridge in heavy-duty housings.

## Overview

The Pentair Pentek EP-20BB Big Blue Carbon Water Filter is a 20-inch whole house replacement cartridge featuring a 5-micron bonded powdered activated carbon block. Designed for universal compatibility with all 20" Big Blue housings, it offers superior chlorine taste and odor reduction with a high porosity design that prevents clogging. NSF certified and boasting a 44,000-gallon capacity, this filter ensures long-lasting, reliable water purification for residential and commercial use.

## Description

Pentair Pentek EP Series Carbon Block Cartridges are manufactured using a process that yields a cartridge with a nominal 5- filtration rating and high dirt-holding capacity. A high porosity design helps the cartridge from plugging before its adsorption capacity is exhausted, maximizing the utilization of the carbon while maintaining low pressure drop. These cartridges are protected by a uniquely formulated polyolefin bilaminate pre-filter, designed to significantly increase the useful life of the cartridge by trapping sediment that typically plugs carbon block cartridges. EP Series Cartridges make an ideal choice for a wide range of residential, food service, commercial and industrial applications.

Review: These filters work flawlessly. - I have been ordering the Pentair Pentek EP-10 Carbon Water Filter, 10-Inch .5 micron for a few years. This product performs as expected and has a consistent performance time range that I appreciate. I've come to be able to install them fairly easily and I change them without excessive effort! Thank you for a great product and the confidence of keeping my water system clean & clear of minerals & contaminants.
Review: Great filters and great price - These filters were quite similar to the ones installed by Culligan. Quality seems great, it’s easy to install yourself, and the water flow issue was resolved by replacing old filter by this filter brand.

## Features

- GREATER CHLORINE TASTE and ODOR REDUCTION than competitive 10 Micron carbon blocks
- FITS ALL 20" Big Blue or other heavy duty housings and can replace any 20" x 4.5" carbon filter cartridge
- HIGH POROSITY DESIGN helps prevent the cartridge from plugging before its adsorption capacity is exhausted
- NSF INTERNATIONAL tested and certified for your peace of mind
- 44,000 GALLON CAPACITY. Replace every year or when you notice a drop in water pressure or water quality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09MSWNKSK |
| Batteries Required? | No |
| Best Sellers Rank | #12,059 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #108 in Replacement Under-Sink Water Filters |
| Brand | Pentek |
| Color | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,041) |
| Date First Available | December 1, 2021 |
| EU Spare Part Availability Duration | 1 Years |
| External Testing Certification | ANSI, NSF |
| Global Trade Identification Number | 30051678583433 |
| Item Package Quantity | 1 |
| Item Weight | 26.5 pounds |
| Item model number | EP-20BB |
| Manufacturer | Pentair |
| Material | Polypropylene (PP) |
| Number Of Pieces | 4 |
| Number of Items | 1 |
| Part Number | 155583-43-APC |
| Pattern | Filter |
| Product Benefits | Reduces Chlorine |
| Product Dimensions | 4.5"D x 4.5"W x 20"H |
| Set Name | 4-pack |
| Size | Pack of 4 |
| Style | 20" x 4.5" |
| Unit Count | 1.0 Count |
| Warranty Description | 30 day manufacturer |

## Product Details

- **External Testing Certification:** ANSI, NSF
- **Item Weight:** 26.5 Pounds
- **Material:** Polypropylene (PP)
- **Product Benefits:** Reduces Chlorine
- **Product Dimensions:** 4.5"D x 4.5"W x 20"H

## Images

![Pentair Pentek EP-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", 5 Micron, Pack of 4 - Image 1](https://m.media-amazon.com/images/I/81f7hvxThNL.jpg)
![Pentair Pentek EP-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", 5 Micron, Pack of 4 - Image 2](https://m.media-amazon.com/images/I/81Nl6X4thyL.jpg)
![Pentair Pentek EP-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", 5 Micron, Pack of 4 - Image 3](https://m.media-amazon.com/images/I/81cTYn-h3nL.jpg)
![Pentair Pentek EP-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", 5 Micron, Pack of 4 - Image 4](https://m.media-amazon.com/images/I/61qZ6hYaZ4L.jpg)
![Pentair Pentek EP-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", 5 Micron, Pack of 4 - Image 5](https://m.media-amazon.com/images/I/71ZZBSPbwML.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ These filters work flawlessly.
*by R***F on January 27, 2026*

I have been ordering the Pentair Pentek EP-10 Carbon Water Filter, 10-Inch .5 micron for a few years. This product performs as expected and has a consistent performance time range that I appreciate. I've come to be able to install them fairly easily and I change them without excessive effort! Thank you for a great product and the confidence of keeping my water system clean & clear of minerals & contaminants.

### ⭐⭐⭐⭐⭐ Great filters and great price
*by A***I on July 12, 2025*

These filters were quite similar to the ones installed by Culligan. Quality seems great, it’s easy to install yourself, and the water flow issue was resolved by replacing old filter by this filter brand.

### ⭐⭐⭐⭐⭐ Great replacement filter!
*by L***T on November 17, 2025*

Exactly what you need! Fits perfectly, high quality filter.

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---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-24*