---
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: "₩847264"
currency: KRW
in_stock: true
reviews_count: 13
url: https://www.desertcart.kr/products/451751528-pentair-pentek-ep-20bb-big-blue-carbon-water-filter-20
store_origin: KR
region: South Korea
---

# 44,000 Gallon capacity 20" x 4.5" size 5 Micron filtration 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:** ₩847264
**Availability:** ✅ In Stock

## Summary

> 💦 Filter Your World: Elevate Your Hydration Game!

## 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?** ₩847264 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/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

- • **NSF Certified:** Rest easy knowing your filter meets rigorous safety and quality standards.
- • **Universal Fit:** Seamlessly replaces any 20" x 4.5" carbon filter cartridge, ensuring compatibility with all Big Blue systems.
- • **High Porosity Design:** Innovative structure prevents clogging, maximizing filtration efficiency until the very last drop.
- • **Long-lasting Performance:** With a capacity of 44,000 gallons, enjoy clean water for an entire year without hassle.
- • **Unmatched Chlorine Reduction:** Experience superior taste and odor elimination, leaving your water refreshingly pure.

## Overview

The Pentair Pentek EP-20BB Big Blue Carbon Water Filter is a high-performance whole house carbon block replacement cartridge designed to significantly reduce chlorine taste and odor. Measuring 20" x 4.5" with a 5 Micron filtration capability, this filter boasts a remarkable 44,000-gallon capacity, ensuring long-lasting clean water for your home. Certified by NSF International, it fits all standard 20" Big Blue housings and features a high porosity design to prevent clogging, making it a reliable choice for health-conscious consumers.

## Description

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

## 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 |
|---------------|-------|
| Material | Polypropylene |
| Product Dimensions | 4.5"D x 4.5"W x 20"H |
| External Testing Certification | ANSI, NSF |
| Product Benefits | Reduces Chlorine |
| Brand | Pentek |
| Global Trade Identification Number | 30051678583433 |
| Unit Count | 1.0 Count |
| Manufacturer | Pentair |
| Part Number | 155583-43-APC |
| Item Weight | 26.4 pounds |
| Country of Origin | USA |
| Item model number | EP-20BB |
| Size | Pack of 4 |
| Color | White |
| Style | 20" x 4.5" |
| Pattern | Filter |
| Item Package Quantity | 1 |
| Number Of Pieces | 4 |
| Batteries Required? | No |
| Warranty Description | 30 day manufacturer |

## 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/61BFyTc0OHL.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/51CcmkJCepL.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/71HS9GTSazL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    good water filter
  

*by J***M on Reviewed in the United States on June 12, 2024*

good job at trapping sediment

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works Well
  

*by J***Y on Reviewed in the United States on July 8, 2024*

Easy to use

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Gets the job done
  

*by D***R on Reviewed in the United States on March 16, 2012*

I get municipal drinking water with 1-2ppm of of chlorine (as much as a public pool) and 22 grains of hardness (more than 2x what's considered "extremely hard").  When I had a water softener installed in my house, I also had a 
  
Pentek 20" Big Blue Housing







  
  
     installed before softener.  I wanted the carbon filter for a few reasons:  1) Keep chlorine out of the shower and bath, out of my family's lungs and off of our skin  2) Keep chlorine out of the washing machine where it bleaches our clothing  3) Protect the resin in the water softener, which should double it's life  4) Protect the plumbing (PEX pipes, rubber in fixtures, etc...) from chlorine  5) Remove the small amount of sediment that is in the city water which collects in valves and fixturesI previously used the 
  
Pentek RFC20-BB Radial-Flow Granular Activated Carbon Cartridge







  
  
    .  In comparison, this filter is less expensive, has a finer sediment filter (5 micron vs. 25 micron) and it's rated for up to 180F.  Also, carbon block filters don't have the same channeling issues as GAC filters, which become less effective at higher flow rates.However, compared to the RFC20-BB this filter can't handle as much water (only 40,000 Gal. vs. 70,000 Gal.) and has a bigger pressure drop (5.5 psi @ 5 gpm vs. 0.9 psi @ 4 gpm). Neither of those were a big concern for me. We use less than 1,000 gal/week so the capacity easily exceeds the 6 month replacement cycle.  As for water pressure, I get a solid 60+ psi coming into my house and even a 10 psi drop is not noticeable.  If you already have pressure issues, get RFC20 instead.

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---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-29*