---
product_id: 730774456
title: "SimPure Whole House Water Filter Housing (DB20P) 20\" x 4.5\" Sediment Carbon Cartridge, Universal Housing, Pre-Filtration System for Well and City Water, 1\" NPT Port Pressure Release"
brand: "simpure"
price: "$431.61"
currency: USD
in_stock: false
url: https://www.desertcart.us/products/730774456-simpure-whole-house-water-filter-housing-db20p-20-x-4
store_origin: US
region: United States of America
---

# Built-in pressure relief button for easy filter changes Reinforced polypropylene housing for durability 1" NPT brass port for secure fittings SimPure Whole House Water Filter Housing (DB20P) 20" x 4.5" Sediment Carbon Cartridge, Universal Housing, Pre-Filtration System for Well and City Water, 1" NPT Port Pressure Release

**Brand:** simpure
**Price:** $431.61
**Availability:** ❌ Out of Stock

## Summary

> 💧 Elevate your home’s water game with leak-proof, pro-grade filtration housing!

## Quick Answers

- **What is this?** SimPure Whole House Water Filter Housing (DB20P) 20" x 4.5" Sediment Carbon Cartridge, Universal Housing, Pre-Filtration System for Well and City Water, 1" NPT Port Pressure Release by simpure
- **How much does it cost?** $431.61 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/730774456-simpure-whole-house-water-filter-housing-db20p-20-x-4)

## Best For

- simpure enthusiasts

## Why This Product

- Trusted simpure brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safe & Certified:** NSF-tested, food-grade materials ensure pure, healthy water throughout your home
- • **Leak-Proof Strength:** Thicker, raised screw holes prevent leaks even after long-term use
- • **Effortless Installation:** Includes wrench, steel mounting bracket & screws for quick DIY setup
- • **Universal Compatibility:** Fits all standard 4.5" x 20" filter cartridges from top brands
- • **Pressure Relief Innovation:** Integrated red button releases pressure instantly for hassle-free filter swaps

## Overview

The SimPure DB20P Whole House Water Filter Housing is a robust, NSF-certified filtration system component made from reinforced polypropylene and food-grade materials. Designed for both well and city water, it features a 1" NPT brass port, universal compatibility with standard 4.5" x 20" cartridges, and an upgraded leak-resistant design with a built-in pressure relief button. Complete with installation tools, it offers a durable, easy-to-install solution for clean, safe water throughout your home.

## Description

Enhance your water quality with the SimPure Whole House Water Filter Housing (DB20P) Designed for both well and tap water. This sturdy housing is made of reinforced polypropylene, ensuring strength and resistance to chemicals, and food grade materials provide safe and healthy water. The upgraded design has thick raised screw holes to prevent leakage, and the built-in pressure relief button makes changing the filter easy. The DB20P is compatible with universal standard 4.5" x 20" filter cartridges, and fits most whole house water filtration systems. All tools required for installation are included and compatible with 1" NPT brass port filters. Please note that filters and pushers are sold separately. DB20P is 10 inches long, 7 inches wide, 23.5 inches tall, and is NSF certified. The package includes screws and instructions. Please take into account the space you need to install and replace the filter elements.

## Features

- PREMIUM QUALITY: Tested to NSF Standards. The whole house water filter housing is made of reinforced polypropylene for strength and chemical resistance. Food grade material, all filtered water is safe and healthy. If you need a more efficient overall home water filtration solution, please choose our latest ultimate water filtration solution:- -B0C9ZY2FDG
- UPGRADED DESIGN: Compared to other inline water filter housings for leakage complaints, SimPure 20" x 4.5" filter housing is thicker and lifts the screw hole and prevents water from leaking through the mounting hole even after extended use
- EASY TO INSTALL: The BB filter housing comes with all the tools you need for installation, including a wrench, a solid steel mounting bracket and four screws. Built-in red pressure relief button releases water pressure and makes changing the filter a breeze
- 1" NPT BRASS PORT: BB water filter housing has 1" NPT brass thread. You can choose sediment filters, carbon water filters and more to install the water filtration system throughout the house by DIY for each water quality. (Filters and push fittings must be purchased separately.)
- COMPATIBLE CARTRIDGE: SimPure DB20 BB Housing fits universal standard 4.5" x 20" filter cartridge and fits Whirlpool, Aqua-Pure, Geekpure, Ronaqua, etc. It also fits the whole house water purification system DIY. (Filter cartridge not included)
- Note: Brass thread provides excellent sealing Do not over-use Teflon tape during installation to avoid damage to brass threads or more severe water leakage
- About O-Ring: If you need an O-ring suitable for DB20P, please search B09TR53SD1
- TIP: Due to the large size of this water filter housing for the whole house, please consider the space you need to install and replace the filter element according to the size of the product, whether it is suitable for the installation location

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | SimPure |
| Part number | DB20P |
| Item Weight | 4.54 Kilograms |
| Product Dimensions | 58.42 x 17.78 x 58.42 cm; 4.54 kg |
| Size | 1 Count (Pack of 1) |
| Style | System (20" x 4.5") |
| Power source type | アダプター。 |
| Installation Method | Mount |
| Special Features | NSF認定。 |
| Batteries Included | No |
| Batteries Required? | No |
| Item Dimensions LxWxH | 58.4 x 17.8 x 58.4 cm |

## Product Details

- **Brand:** SimPure
- **Special Feature:** NSF認定。
- **Product Dimensions:** 50.8L x 17.8W x 59.7H cm
- **Package Information:** カートリッジ。
- **Installation Type:** Mount
- **Power Source:** アダプター。
- **Model Name:** DB20P
- **Upper Temperature Rating:** 248 Degrees Fahrenheit
- **UPC:** 778695796590
- **Manufacturer:** SimPure

## Images

![SimPure Whole House Water Filter Housing (DB20P) 20" x 4.5" Sediment Carbon Cartridge, Universal Housing, Pre-Filtration System for Well and City Water, 1" NPT Port Pressure Release - Image 1](https://m.media-amazon.com/images/I/616oyeHD98L.jpg)
![SimPure Whole House Water Filter Housing (DB20P) 20" x 4.5" Sediment Carbon Cartridge, Universal Housing, Pre-Filtration System for Well and City Water, 1" NPT Port Pressure Release - Image 2](https://m.media-amazon.com/images/I/71545LKeZUL.jpg)
![SimPure Whole House Water Filter Housing (DB20P) 20" x 4.5" Sediment Carbon Cartridge, Universal Housing, Pre-Filtration System for Well and City Water, 1" NPT Port Pressure Release - Image 3](https://m.media-amazon.com/images/I/71dQOdjuOML.jpg)
![SimPure Whole House Water Filter Housing (DB20P) 20" x 4.5" Sediment Carbon Cartridge, Universal Housing, Pre-Filtration System for Well and City Water, 1" NPT Port Pressure Release - Image 4](https://m.media-amazon.com/images/I/71-NYRXfN5S.jpg)
![SimPure Whole House Water Filter Housing (DB20P) 20" x 4.5" Sediment Carbon Cartridge, Universal Housing, Pre-Filtration System for Well and City Water, 1" NPT Port Pressure Release - Image 5](https://m.media-amazon.com/images/I/71rqG3yhnAL.jpg)

## Available Options

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

## Questions & Answers

**Q: How do i buy spare o-rings? i want to buy extra o-rings for my simpure b07v6ry5b4 filter 10" x 2.5". the links in all the answers are not correct.**
A: O-Ring Replacements for SimPure DB1025 (B07V6RY5B4)  - Link： 
https://www.amazon.com/dp/B0B7P1L17K

**Q: Does this remove rust/iron?**
A: That would depend on the filter installed in the housing. 

If you are dealing with large rust and other sediment particles in your water you should be fine with a 5 micron sediment filter. For wells I like pleated filters like this: https://amazon.com/dp/B074FW96PG. 

If iron is dissolved in your water, you need something that filters iron/manganese like this: https://amazon.com/dp/B09JWP92PD

**Q: How do you contact customer support?  The inlet and outlet ports leak no matter how much ptfe tape or thread sealant used.**
A: I put an O-ring (# 18) inside each port before the brass bushing.  Then I coated the threads with sealant and 10 wraps of teflon tape.  I think there may be a design flaw, it shouldn't be that difficult.

**Q: The filter housing leaks profusely. i checked the o-ring/tested it without a filter to no avail. anyone had this problem and been able to fix it?**
A: Try to lube the o-ring with some coconut oil or silicone lube and reassemble.  Also, if you are using carbon filters, I have seen that sometimes they are just a bit too tall, and so removing one of the gaskets allows the tank to be tightened a bit further, causing a seal. If you write to the company for support, they have a support rep out of Canada who is fantastic.  Be sure to include your Amazon order number and you may want to request a call back (specifically by phone) so that they will route it to him early.

## Frequently Bought Together

- SimPure Whole House Water Filter Housing (DB20P), 20" x 4.5" Sediment Carbon Filter Universal Housing, Pre-Filtration System for Well and City Water, 1" NPT Port, Pressure Release
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- 5 Micron 10" x 4.5" Sediment and Carbon Whole House Water Filters SimPure Replacement Cartridge for GE FXHTC, GXWH40L, RFC-BB / 155141-43, FC15B, HB18B, WRC25HD, WDGD-5005, W10-PR, W15-PR, 3-Pack

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-20*