---
product_id: 586533105
title: "Pentair Pentek DGD-7525-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20\" x 4.5\", 25 Micron, Pack of 2, White"
brand: "pentek"
price: "฿9383"
currency: THB
in_stock: true
reviews_count: 13
category: "Pentek"
url: https://www.desertcart.co.th/products/586533105-pentair-pentek-dgd-7525-20-big-blue-water-filter-20
store_origin: TH
region: Thailand
---

# Fits All 20" Big Blue Housings 25 Micron Precision Filtration Dual-Gradient Density Tech Pentair Pentek DGD-7525-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 25 Micron, Pack of 2, White

**Brand:** pentek
**Price:** ฿9383
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate Your Home’s Water Game with Big Blue Power!

## Quick Answers

- **What is this?** Pentair Pentek DGD-7525-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 25 Micron, Pack of 2, White by pentek
- **How much does it cost?** ฿9383 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/586533105-pentair-pentek-dgd-7525-20-big-blue-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

- • **Heavy-Duty Compatibility:** Sized perfectly for all 20-inch Big Blue filter housings, ensuring seamless integration with your existing system.
- • **Triple Dirt-Holding Power:** 3X the capacity of standard sediment filters means fewer replacements and uninterrupted clean water flow.
- • **Certified Purity Assurance:** NSF/ANSI Standard 42 certification guarantees no taste, odor, or color alteration—just pure water.
- • **Advanced Dual-Gradient Design:** Innovative spun polypropylene layers increase filter density toward the core for superior particulate reduction.
- • **Biannual Replacement Reminder:** Optimized lifespan with a recommended 6-month replacement cycle to maintain peak water quality and pressure.

## Overview

The Pentair Pentek DGD-7525-20 Big Blue Water Filter is a 20-inch dual-gradient density sediment cartridge designed for whole-house filtration. Made from 100% pure polypropylene, it offers 25-micron filtration with 3X dirt holding capacity compared to standard filters. Certified to NSF/ANSI Standard 42, it ensures clean, odorless, and tasteless water while fitting all 20-inch Big Blue housings. Sold in packs of two, it’s engineered for high flow and durability, ideal for residential and commercial use.

## Description

DGD Series Cartridges are manufactured from 100% pure polypropylene and are sized for use in Pentair Pentek Big Blue 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. 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.

Review: Every Day Use Just Have to Clean it Every 6 months - I use this filter for a small house and also for irrigation. It does a good job catching dirt and debris before it gets into the system. The filter gets dirty but the water stays clean. I usually clean it or change it about every six months depending on how dirty the water is. It has been working well so far and seems like good quality.
Review: Looks different than OEM but works great - Just know they look a little different than the original/oem. Initially they look a little taller, but they don't have the plastic end cap and black rubber seal. So overall length is actually the same. Fits perfectly. Working well so far.

## Features

- KEEP YOUR WATER CLEAN and protect your appliances by removing dirt, sand, silt and particulates. DGD Big Blue water filter cartridges are designed for purity and will NOT impart taste, odor or color to your water
- IDEAL HIGH-FLOW PRE-FILTER. Filter density increases toward the cartridge's center resulting in superior particulate reduction and 3X the dirt holding capacity of similar size sediment cartridges
- TESTED AND CERTIFIED BY NSF INTERNATIONAL to NSF/ANSI Standard 42 for your peace of mind. Manufactured with 100% pure polypropylene
- SIZED FOR USE IN ALL 20 inch Big Blue filter housings (or other heavy duty filter housings) and can replace any 20 inch x 4.5 inch sediment filter cartridge
- REPLACE EVERY 6 MONTHS or when you notice a drop in water pressure or water quality for best results and performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CJCWRRVH |
| Best Sellers Rank | #2,027 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #14 in Replacement Under-Sink Water Filters |
| Brand | Pentek |
| Brand Name | Pentek |
| Customer Reviews | 4.7 out of 5 stars 2,368 Reviews |
| External Testing Certification | ANSI |
| Global Trade Identification Number | 50051678356437 |
| Item Dimensions D x W x H | 4.5"D x 4.5"W x 20"H |
| Item Type Name | Pentair Pentek DGD-7525-20 Big Blue Water Filter |
| Manufacturer | Pentair |
| Manufacturer Part Number | 155356-44 |
| Material | Polypropylene (PP) |
| Material Type | Polypropylene (PP) |
| Model Number | DGD-7525-20 |
| Number of Items | 2 |
| Product Benefits | Protects appliances by removing impurities, high-flow pre-filter, third-party tested and certified, compatible with various filter housings Product Benefits Protects appliances by removing impurities, high-flow pre-filter, third-party tested and certified, compatible with various filter housings See more |
| Product Dimensions | 4.5"D x 4.5"W x 20"H |
| Unit Count | 2.0 Count |

## Product Details

- **Material:** Polypropylene (PP)
- **Product Dimensions:** 4.5"D x 4.5"W x 20"H
- **External Testing Certification:** ANSI
- **Product Benefits:** Protects appliances by removing impurities, high-flow pre-filter, third-party tested and certified, compatible with various filter housings
- **Brand:** Pentek

## Images

![Pentair Pentek DGD-7525-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 25 Micron, Pack of 2, White - Image 1](https://m.media-amazon.com/images/I/51D0z2TV99L.jpg)
![Pentair Pentek DGD-7525-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 25 Micron, Pack of 2, White - Image 2](https://m.media-amazon.com/images/I/81Nl6X4thyL.jpg)
![Pentair Pentek DGD-7525-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 25 Micron, Pack of 2, White - Image 3](https://m.media-amazon.com/images/I/71O4K2WiO3L.jpg)
![Pentair Pentek DGD-7525-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 25 Micron, Pack of 2, White - Image 4](https://m.media-amazon.com/images/I/61qZ6hYaZ4L.jpg)
![Pentair Pentek DGD-7525-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 25 Micron, Pack of 2, White - Image 5](https://m.media-amazon.com/images/I/71ZZBSPbwML.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Every Day Use Just Have to Clean it Every 6 months
*by E***R on April 4, 2026*

I use this filter for a small house and also for irrigation. It does a good job catching dirt and debris before it gets into the system. The filter gets dirty but the water stays clean. I usually clean it or change it about every six months depending on how dirty the water is. It has been working well so far and seems like good quality.

### ⭐⭐⭐⭐⭐ Looks different than OEM but works great
*by J***. on May 16, 2026*

Just know they look a little different than the original/oem. Initially they look a little taller, but they don't have the plastic end cap and black rubber seal. So overall length is actually the same. Fits perfectly. Working well so far.

### ⭐⭐⭐⭐⭐ Clean Water, No Worries
*by C***L on April 20, 2026*

I’ve bought the Pentair Pentek DGD‑2501‑20 filter before, and I keep coming back because it truly makes a difference in my home. When I use it, the water looks clearer and tastes fresher, which makes me feel good about what my family is drinking. It catches the dirt and sand that used to slip through other filters I tried. I like that it lasts a long time and fits my system without any trouble. This filter has earned my trust, and I’m happy to say I really love this product.

## Frequently Bought Together

- Pentair Pentek DGD-7525-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 25 Micron, Pack of 2, White
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---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-06-02*