---
product_id: 13613333
title: "Pentek - 255496-43 ECP50-20BB Pleated Cellulose Polyester Filter Cartridge, 20\" x 4-1/2\", 50 Microns"
brand: "pentek"
price: "€ 84.99"
currency: EUR
in_stock: true
reviews_count: 13
category: "Pentek"
url: https://www.desertcart.hr/products/13613333-pentek-255496-43-ecp50-20bb-pleated-cellulose-polyester-filter-cartridge
store_origin: HR
region: Croatia
---

# <1 psi pressure drop 36 sq ft pleated media sonically welded seam Pentek - 255496-43 ECP50-20BB Pleated Cellulose Polyester Filter Cartridge, 20" x 4-1/2", 50 Microns

**Brand:** pentek
**Price:** € 84.99
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your water game with filtration that flows as hard as you hustle.

## Quick Answers

- **What is this?** Pentek - 255496-43 ECP50-20BB Pleated Cellulose Polyester Filter Cartridge, 20" x 4-1/2", 50 Microns by pentek
- **How much does it cost?** € 84.99 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/13613333-pentek-255496-43-ecp50-20bb-pleated-cellulose-polyester-filter-cartridge)

## 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:** Sonically welded seams and resin-impregnated fibers boost wet strength and prevent internal bypass for superior filtration.
- • **Effortless Flow:** Operates under 1 psi pressure drop at 20 gpm, ensuring strong, consistent water pressure throughout your home.
- • **Extended Filter Life:** Pleated design offers significantly more surface area, reducing replacement frequency to every 3-6 months.
- • **Maximized Dirt Capture:** 36 sq ft pleated cellulose-polyester media traps sediment down to 50 microns for crystal-clear water.
- • **Plug & Play Compatibility:** Fits all standard 20" Big Blue housings with color-coded yellow endcaps for quick, hassle-free replacements.

## Overview

The Pentek ECP50-20BB is a high-performance 20" pleated sediment filter cartridge designed for whole-house water filtration. Featuring 36 square feet of cellulose-polyester media, it captures particles down to 50 microns while maintaining a low pressure drop (<1 psi at 20 gpm). Sonically welded seams and resin-impregnated fibers enhance durability and filtration efficiency. Compatible with standard Big Blue housings, this cartridge offers extended dirt-holding capacity and easy identification with its yellow endcap, making it a reliable choice for professionals seeking clean, uninterrupted water flow.

## Description

The Pentair Pentek ECP50-20BB is a 50-micron pleated sediment filter cartridge designed for whole house water filtration in standard 20" x 4.5" Big Blue housings. The filter media is constructed from a blend of resin-impregnated cellulose and polyester fibers, providing higher wet strength than standard cellulose cartridges. The pleated design delivers 36 square feet of filter surface area, extending dirt-holding capacity and filter life compared to non-pleated alternatives.The ECP50-20BB features a sonically welded overlap seam that reduces internal bypass for improved filtration efficiency. The cartridge is built around a polypropylene core for added structural strength, with polypropylene endcaps and gaskets for a secure seal. It is compatible with both chlorinated and non-chlorinated water supplies.This cartridge operates at less than 1 psi pressure drop at 20 gpm, with a temperature range of 40-125 degrees F. The yellow endcap is color-coded for quick 50-micron identification during filter changes. Replace every 3-6 months or when you notice a decrease in water pressure.

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

- REDUCES SEDIMENT AND PARTICULATES - Pleated cellulose polyester media captures dirt, sand, silt, and rust down to 50 microns while maintaining high flow rates for whole house water filtration
- 36 SQUARE FEET OF FILTER MEDIA - Pleated design provides significantly more surface area than standard cartridges for extended dirt-holding capacity and longer filter life
- SONICALLY WELDED FOR EFFICIENCY - Overlap seam is sonically welded to reduce internal bypass and improve filtration efficiency; resin-impregnated fibers provide higher wet strength than regular cellulose
- FITS 20" BIG BLUE HOUSINGS - Drop-in replacement for any standard 20" x 4.5" Big Blue or heavy-duty filter housing; yellow endcap is color-coded for easy micron identification at replacement
- LOW PRESSURE DROP - Less than 1 psi at 20 gpm maintains strong water flow throughout your system; operating temperature range 40-125 degrees F; replace every 3-6 months

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0030ZMG4U |
| Best Sellers Rank | #9,836 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Industrial Process Filter Cartridges |
| Brand | Pentek |
| Brand Name | Pentek |
| Customer Reviews | 4.7 out of 5 stars 350 Reviews |
| External Testing Certification | ANSI, NSF |
| Global Trade Identification Number | 00051678496435 |
| Item Dimensions D x W x H | 4.5"D x 4.5"W x 20"H |
| Item Type Name | Sediment Water Filter |
| Item Weight | 0.01 Ounces |
| Manufacturer | Pentair Industries |
| Manufacturer Part Number | 255496-43 |
| Material | Polyester |
| Material Type | Polyester |
| Model Number | ECP50-20BB |
| Number of Items | 1 |
| Product Benefits | Removes Pollutants |
| Product Dimensions | 4.5"D x 4.5"W x 20"H |
| Set Name | Big Blue |
| UPC | 051678496435 807032972660 |
| Unit Count | 1.0 Count |

## Product Details

- **External Testing Certification:** ANSI, NSF
- **Item Weight:** 0.01 Ounces
- **Material:** Polyester
- **Product Benefits:** Removes Pollutants
- **Product Dimensions:** 4.5"D x 4.5"W x 20"H

## Images

![Pentek - 255496-43 ECP50-20BB Pleated Cellulose Polyester Filter Cartridge, 20" x 4-1/2", 50 Microns - Image 1](https://m.media-amazon.com/images/I/51AE4O93LxL.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.

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**Shop now:** [https://www.desertcart.hr/products/13613333-pentek-255496-43-ecp50-20bb-pleated-cellulose-polyester-filter-cartridge](https://www.desertcart.hr/products/13613333-pentek-255496-43-ecp50-20bb-pleated-cellulose-polyester-filter-cartridge)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-07*