---
product_id: 17161248
title: "Pentair Pentek ECP5-20BB Big Blue Sediment Water Filter, 20-Inch, Whole House Heavy Duty Pleated Cellulose Polyester Replacement Cartridge, 20\" x 4.5\", White End-Cap, 5 Micron"
price: "$111.41"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/17161248-pentair-pentek-ecp5-20bb-big-blue-sediment-water-filter-20
store_origin: US
region: United States of America
---

# 33% More Dirt Holding Capacity 5 Micron Precision Filtration Fits All 20" Big Blue Housings Pentair Pentek ECP5-20BB Big Blue Sediment Water Filter, 20-Inch, Whole House Heavy Duty Pleated Cellulose Polyester Replacement Cartridge, 20" x 4.5", White End-Cap, 5 Micron

**Price:** $111.41
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your home’s water game with Big Blue power filtration!

## Quick Answers

- **What is this?** Pentair Pentek ECP5-20BB Big Blue Sediment Water Filter, 20-Inch, Whole House Heavy Duty Pleated Cellulose Polyester Replacement Cartridge, 20" x 4.5", White End-Cap, 5 Micron
- **How much does it cost?** $111.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/17161248-pentair-pentek-ecp5-20bb-big-blue-sediment-water-filter-20)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** 33% more dirt-holding media means longer filter life and fewer replacements
- • **Reinforced Strength:** Unique resin-impregnated cellulose-polyester blend for superior durability
- • **Effortless Maintenance:** Color-coded white end-cap for quick, no-fuss filter changes every 6 months
- • **Crystal-Clear Hydration:** Removes dirt, sand, silt & particulates for pristine water quality
- • **Universal Compatibility:** Seamlessly fits all 20" Big Blue housings—upgrade without hassle

## Overview

The Pentair Pentek ECP5-20BB is a 20-inch whole house sediment water filter cartridge designed with a durable resin-impregnated cellulose and polyester blend. It delivers high flow rates and superior filtration at 5 microns, fitting all standard 20" Big Blue housings. With 33% more dirt-holding capacity than competitors and a color-coded end-cap for easy replacement, it ensures cleaner water and longer appliance protection with minimal maintenance.

## Description

Pentair Pentek ECP Series Cartridges are manufactured from a special formulation of resin-impregnated cellulose and polyester fibers. This unique blend of materials provides a higher wet strength than regular cellulose cartridges. It also provides high flow rates and dirt-holding capacity while maintaining extremely low pressure drop. The media is pleated around a polypropylene core for added strength. The pleated endcaps of the standard cartridges are immersed in a thermo-setting vinyl plastisol. The Big Blue cartridges have a molded endcap with gaskets. The pleated ends are sealed to the endcap with a thermoplastic adhesive. The overlap seam is sonically welded to reduce internal bypass, improving filtration efficiency. ECP Series Cartridge endcaps feature a color-coding system for easy identification of micron ratings: tan (1 micron), white (5 micron), blue (20 micron), and yellow (50 micron).

Review: Quality filter for a rainwater filtration system. - I've been using these filters in our whole-house rainwater system that serves as our primary potable water source for 9 years, so I've probably bought them over fifty times. They hold together well and filter the water exactly as they should. As long they make them I'll continue to use them.
Review: Good filter for wells - Unlike some comments, the Pentair, Pentek ECP1-20BB 1-Micorn filter does not come packaged with notations not to use with non-chlorinated water. We use it on our well and even with just pressure tank pressure (Less than most city supplied water), it works superbly. Will buy again. PS: We have a professional well company who also recommends this filter.

## Features

- KEEP YOUR WATER CLEAN and protect your appliances by removing dirt, sand, silt and particulates
- FITS ALL 20" Big Blue housings and can replace any 20" x 4.5" heavy duty sediment filter cartridge
- LONGER LIFE with 33% more dirt holding media than many competitors
- STRONGER than standard cellulose cartridges with a unique blend of resin-impregnated cellulose and polyester
- REPLACE EVERY 6 MONTHS or when you notice a drop in water pressure or quality. The cap is color-coded for easy replacement

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Polyester |
| Product Dimensions | 4.5"D x 4.5"W x 20"H |
| Item Weight | 1.4 Pounds |
| External Testing Certification | IAPMO, ANSI, NSF |
| Product Benefits | Removes Dust |
| Brand | Pentek |
| Set Name | Big Blue |
| UPC | 182682388345 051678494431 807032972622 |
| Global Trade Identification Number | 00051678494431 |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Manufacturer | Pentair Industries |
| Part Number | 255494-43 |
| Item Weight | 1.4 pounds |
| Item model number | ECP5-20BB |
| Is Discontinued By Manufacturer | No |
| Size | 1 Count (Pack of 1) |
| Color | White |
| Style | 5 Micron |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Certification | ISO, ISO 9001 |
| Included Components | Big Blue 20-Inch Sediment Water Filter |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Polyester
- **Product Dimensions:** 4.5"D x 4.5"W x 20"H
- **Item Weight:** 1.4 Pounds
- **External Testing Certification:** IAPMO, ANSI, NSF
- **Product Benefits:** Removes Dust

## Images

![Pentair Pentek ECP5-20BB Big Blue Sediment Water Filter, 20-Inch, Whole House Heavy Duty Pleated Cellulose Polyester Replacement Cartridge, 20" x 4.5", White End-Cap, 5 Micron - Image 1](https://m.media-amazon.com/images/I/41SnbohCQhL._AC_UF894,1000_QL80_.jpg)
![Pentair Pentek ECP5-20BB Big Blue Sediment Water Filter, 20-Inch, Whole House Heavy Duty Pleated Cellulose Polyester Replacement Cartridge, 20" x 4.5", White End-Cap, 5 Micron - Image 2](https://m.media-amazon.com/images/I/41SnbohCQhL._SS80_.jpg)
![Pentair Pentek ECP5-20BB Big Blue Sediment Water Filter, 20-Inch, Whole House Heavy Duty Pleated Cellulose Polyester Replacement Cartridge, 20" x 4.5", White End-Cap, 5 Micron - Image 3](https://m.media-amazon.com/images/I/41SnbohCQhL.jpg)
![Pentair Pentek ECP5-20BB Big Blue Sediment Water Filter, 20-Inch, Whole House Heavy Duty Pleated Cellulose Polyester Replacement Cartridge, 20" x 4.5", White End-Cap, 5 Micron - Image 4](https://m.media-amazon.com/images/I/71PE+LGszfL._SS80_.jpg)
![Pentair Pentek ECP5-20BB Big Blue Sediment Water Filter, 20-Inch, Whole House Heavy Duty Pleated Cellulose Polyester Replacement Cartridge, 20" x 4.5", White End-Cap, 5 Micron - Image 5](https://m.media-amazon.com/images/I/71PE+LGszfL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality filter for a rainwater filtration system.
*by S***N on May 30, 2024*

I've been using these filters in our whole-house rainwater system that serves as our primary potable water source for 9 years, so I've probably bought them over fifty times. They hold together well and filter the water exactly as they should. As long they make them I'll continue to use them.

### ⭐⭐⭐⭐⭐ Good filter for wells
*by A***Y on May 9, 2024*

Unlike some comments, the Pentair, Pentek ECP1-20BB 1-Micorn filter does not come packaged with notations not to use with non-chlorinated water. We use it on our well and even with just pressure tank pressure (Less than most city supplied water), it works superbly. Will buy again. PS: We have a professional well company who also recommends this filter.

### ⭐⭐⭐⭐⭐ Works as advertised.
*by N***T on April 8, 2025*

It is what it is advertised as.

## Frequently Bought Together

- Pentair Pentek ECP5-20BB Big Blue Sediment Water Filter, 20-Inch, Whole House Heavy Duty Pleated Cellulose Polyester Replacement Cartridge, 20" x 4.5", White End-Cap, 5 Micron
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-26*