---
product_id: 747602281
title: "Pentair Pentek DGD-2501-20 Big Blue Sediment Water Filter, Whole House Heavy Duty Dual-Gradient Density Spun Polypropylene Replacement Filter Cartridge, 20\" x 4.5\", 1 Micron, Pack of 6, White"
brand: "pentek"
price: "$232"
currency: NZD
in_stock: false
url: https://www.desertcart.nz/products/747602281-pentair-pentek-dgd-2501-20-big-blue-sediment-water-filter
store_origin: NZ
region: New Zealand
---

# Fits all 20" Big Blue housings 3X dirt holding capacity NSF Certified purity Pentair Pentek DGD-2501-20 Big Blue Sediment Water Filter, Whole House Heavy Duty Dual-Gradient Density Spun Polypropylene Replacement Filter Cartridge, 20" x 4.5", 1 Micron, Pack of 6, White

**Brand:** pentek
**Price:** $232
**Availability:** ❌ Out of Stock

## Summary

> 💧 Elevate your water game with the ultimate heavy-duty filter upgrade!

## Quick Answers

- **What is this?** Pentair Pentek DGD-2501-20 Big Blue Sediment Water Filter, Whole House Heavy Duty Dual-Gradient Density Spun Polypropylene Replacement Filter Cartridge, 20" x 4.5", 1 Micron, Pack of 6, White by pentek
- **How much does it cost?** $232 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/747602281-pentair-pentek-dgd-2501-20-big-blue-sediment-water-filter)

## 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:** Durable 100% pure polypropylene resists chemicals and bacterial attack, ensuring long-term reliability.
- • **Optimized Performance:** Increased filter depth (233%) and larger diameter reduce particle load and maintain high flow rates.
- • **Seamless Compatibility:** Fits all 20" Pentair Pentek Big Blue and other heavy-duty housings for effortless upgrades.
- • **Certified Peace of Mind:** NSF certification guarantees safe, contaminant-free water for your home and appliances.
- • **Unmatched Filtration Power:** Up to 3X the dirt holding capacity of standard sediment filters keeps your water crystal clear longer.

## Overview

The Pentair Pentek DGD-2501-20 is a 20" x 4.5" heavy-duty sediment filter cartridge designed for whole-house water filtration. Made from 100% pure polypropylene, it offers superior chemical resistance and bacterial protection. NSF certified, it fits all Pentair Pentek Big Blue housings and similar models, delivering up to three times the dirt holding capacity of standard filters. Ideal for residential and commercial use, it ensures cleaner water, protects appliances, and maintains optimal flow with a recommended replacement every 6 months.

## Description

Pentair Pentek DGD Series Cartridges are manufactured from 100% pure polypropylene and are sized for use in Pentair Pentek Big Blue Filter Housings (and other heavy duty filter housings). DGD Series Cartridges are designed for purity and will not impart taste, odor or color to the liquid being filtered. Additionally, the polypropylene construction provides superior chemical resistance and is not prone to bacterial attack. The DGD Series' advanced design combines selective final filtration with appropriate pre-filtration to achieve up to three times the dirt holding capacity of similar size sediment cartridges and even greater capacity than standard spun or string-wound cartridges. The larger diameter of the filter reduces the particle load, allowing it to operate at higher velocities. The effective filter depth is increased to a full 233%. This increased depth provides very high particulate reduction efficiencies and added loading capacity. The design and performance characteristics of the DGD Series Cartridges make them an excellent choice for all residential, rural, municipal and commercial applications.

## Features

- KEEP YOUR WATER CLEAN and protect your appliances by removing dirt, sand, silt and particulates
- FITS ALL 20" Pentair Pentek Big Blue or other 20" heavy duty housings and can replace any 20" x 4.5" sediment filter cartridge
- ACHIEVES UP TO 3X the dirt holding capacity of similar size sediment cartridges
- NSF CERTIFIED for your peace of mind.
- REPLACE EVERY 6 MONTHS or when you notice a drop in water pressure or quality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Polypropylene (PP) |
| Item Weight | 5.99 kg |
| External Testing Certification | NSF |
| Product Benefits | Designed for purity and chemical compatibility |
| Brand | pentek |
| Global Trade Identification Number | 30051678360430 |
| Number of Items | 6 |
| Manufacturer | Pentair |
| Item model number | DGD-2501-20 |
| ASIN | B0BMDNQ8ZG |

## Product Details

- **Material:** Polypropylene (PP)
- **Item Weight:** 5.99 kg
- **External Testing Certification:** NSF
- **Product Benefits:** Designed for purity and chemical compatibility
- **Brand:** pentek

## Images

![Pentair Pentek DGD-2501-20 Big Blue Sediment Water Filter, Whole House Heavy Duty Dual-Gradient Density Spun Polypropylene Replacement Filter Cartridge, 20" x 4.5", 1 Micron, Pack of 6, White - Image 1](https://m.media-amazon.com/images/I/61vcNHu1XlL.jpg)
![Pentair Pentek DGD-2501-20 Big Blue Sediment Water Filter, Whole House Heavy Duty Dual-Gradient Density Spun Polypropylene Replacement Filter Cartridge, 20" x 4.5", 1 Micron, Pack of 6, White - Image 2](https://m.media-amazon.com/images/I/81Nl6X4thyL.jpg)
![Pentair Pentek DGD-2501-20 Big Blue Sediment Water Filter, Whole House Heavy Duty Dual-Gradient Density Spun Polypropylene Replacement Filter Cartridge, 20" x 4.5", 1 Micron, Pack of 6, White - Image 3](https://m.media-amazon.com/images/I/7188TkMunSL.jpg)
![Pentair Pentek DGD-2501-20 Big Blue Sediment Water Filter, Whole House Heavy Duty Dual-Gradient Density Spun Polypropylene Replacement Filter Cartridge, 20" x 4.5", 1 Micron, Pack of 6, White - Image 4](https://m.media-amazon.com/images/I/61qZ6hYaZ4L.jpg)
![Pentair Pentek DGD-2501-20 Big Blue Sediment Water Filter, Whole House Heavy Duty Dual-Gradient Density Spun Polypropylene Replacement Filter Cartridge, 20" x 4.5", 1 Micron, Pack of 6, White - Image 5](https://m.media-amazon.com/images/I/71ZZBSPbwML.jpg)

## Available Options

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

## Questions & Answers

**Q: what is the recommended manufacture filter change. or the life span of the filter how many gallons?
Thanks**
A: We have a lot of sediment and silt in our well water.  I have been using these close to 10 years now, and I change them every 3 months.  If I go too long, the silt gets past the filter and into the washing machine (that's where I notice it first).

**Q: Will these filters fit the express water whole house filter hsg?they are also 4.5 x20 filters. Would like to use this gradiant sediment filter**
A: Yes, the sediment filter will fit the 20 inch canister. That is a std size. It should go into the first position in a 3 canister setup.

**Q: Can i replace a dgd-5005- 20 with this dgd-2501-20? what are the consequent's replace more often?**
A: The DGD-2501-20 is designed to remove smaller particulate and is constructed of denser filter media than th DGD-5005-20, thus it my need to be replaced more often if the feed water quality has a higher volume of larger sized particulate.

**Q: Where is this made?**
A: The DGD-5005-20 Pentek is made in China.

## Frequently Bought Together

- Pentair Pentek DGD-2501-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 1 Micron, Pack of 6, White
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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-11*