---
product_id: 293312632
title: "SimPure Upgrade Whole House Water Filter Housing, Universal 20-inch Inline Sediment Filter Big Blue Housing 4.5\" x 20\", 1-inch NPT Inlet Outlet, Heavy Duty Steel Mounting Bracket, 4 Screws, Wrench"
brand: "simpure"
price: "¥7635"
currency: JPY
in_stock: false
url: https://www.desertcart.jp/products/293312632-simpure-upgrade-whole-house-water-filter-housing-universal-20-inch
store_origin: JP
region: Japan
---

# 20-inch Big Blue housing for max filtration capacity Includes wrench & heavy-duty steel mounting bracket for easy install NSF-certified reinforced polypropylene for leak-proof durability SimPure Upgrade Whole House Water Filter Housing, Universal 20-inch Inline Sediment Filter Big Blue Housing 4.5" x 20", 1-inch NPT Inlet Outlet, Heavy Duty Steel Mounting Bracket, 4 Screws, Wrench

**Brand:** simpure
**Price:** ¥7635
**Availability:** ❌ Out of Stock

## Summary

> 💧 Upgrade your home’s hydration game with leak-proof, pro-grade filtration!

## Quick Answers

- **What is this?** SimPure Upgrade Whole House Water Filter Housing, Universal 20-inch Inline Sediment Filter Big Blue Housing 4.5" x 20", 1-inch NPT Inlet Outlet, Heavy Duty Steel Mounting Bracket, 4 Screws, Wrench by simpure
- **How much does it cost?** ¥7635 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/293312632-simpure-upgrade-whole-house-water-filter-housing-universal-20-inch)

## 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

- • **Big Blue Capacity:** Generous 4.5" x 20" size handles whole house filtration needs
- • **Effortless DIY Setup:** Comes with all tools & pressure-relief button for hassle-free filter changes
- • **Certified Safe & Strong:** NSF-tested, food-grade polypropylene ensures clean, healthy water
- • **Universal Compatibility:** 1-inch NPT inlet/outlet fits sediment, carbon, or custom filters
- • **Built to Last, Leak-Free:** Thickened, raised threaded holes eliminate long-term leaks

## Overview

The SimPure Upgrade Whole House Water Filter Housing features a universal 20-inch Big Blue design with 1-inch NPT ports, constructed from NSF-certified reinforced polypropylene for chemical resistance and durability. It includes a heavy-duty steel mounting bracket, wrench, screws, and a built-in pressure-relief button for easy installation and maintenance, ensuring leak-free, safe, and efficient whole house water filtration.

## Description

SimPure Upgrade Whole House Water Filter Housing, 20 Inch Big Blue Filter Housing, 4.5" x 20" Universal Size, 1 inch NPT Thread Inlet Outlet, Large Capacity, Heavy Duty Steel Mounting Bracket, 4 Screws, Wrench

## Features

- PREMIUM QUALITY - Tested anst NSF standards. The whole house water filter housing is made of reinforced polypropylene for strength and resistance to chemicals. Food grade material makes all filtered water is safe and healthy.
- UPGRADE DESIGN - Compared to other inline water filter housing for leakage complaints, SimPure's filter housing thicken and raises the threaded holes, making sure no water leaks from the mounting hole after long-term use.
- EASY INSTALLATION - The big blue filter housing comes with all tools required for installation, including a wrench, heavy-duty steel mounting bracket, 4 screws. The built-in red pressure-relief button for water pressure release, making it easier for filter replacement.
- 1" NPT PORT - The big blue water filter housing with 1" NPT thread. Per your water quality, you can choose the sediment filter, carbon water filter, etc for the DIY installation of the whole housing water filtration system.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SimPure |
| Model Number | DB20P |
| Product Dimensions | 58.42 x 17.78 x 58.42 cm; 4.54 kg |
| Material | Polypropylene Brass |
| Special Features | NSF certified |
| Item Weight | 4.54 Kilograms |

## Product Details

- **Brand:** SimPure
- **Special features:** NSF certified
- **Product dimensions:** 50.8L x 11.4W x 11.4H centimeters
- **Material:** Polypropylene Brass
- **Included components:** Screws, Instruction Manual

## Images

![SimPure Upgrade Whole House Water Filter Housing, Universal 20-inch Inline Sediment Filter Big Blue Housing 4.5" x 20", 1-inch NPT Inlet Outlet, Heavy Duty Steel Mounting Bracket, 4 Screws, Wrench - Image 1](https://m.media-amazon.com/images/I/616oyeHD98L.jpg)
![SimPure Upgrade Whole House Water Filter Housing, Universal 20-inch Inline Sediment Filter Big Blue Housing 4.5" x 20", 1-inch NPT Inlet Outlet, Heavy Duty Steel Mounting Bracket, 4 Screws, Wrench - Image 2](https://m.media-amazon.com/images/I/71545LKeZUL.jpg)
![SimPure Upgrade Whole House Water Filter Housing, Universal 20-inch Inline Sediment Filter Big Blue Housing 4.5" x 20", 1-inch NPT Inlet Outlet, Heavy Duty Steel Mounting Bracket, 4 Screws, Wrench - Image 3](https://m.media-amazon.com/images/I/71dQOdjuOML.jpg)
![SimPure Upgrade Whole House Water Filter Housing, Universal 20-inch Inline Sediment Filter Big Blue Housing 4.5" x 20", 1-inch NPT Inlet Outlet, Heavy Duty Steel Mounting Bracket, 4 Screws, Wrench - Image 4](https://m.media-amazon.com/images/I/71-NYRXfN5S.jpg)
![SimPure Upgrade Whole House Water Filter Housing, Universal 20-inch Inline Sediment Filter Big Blue Housing 4.5" x 20", 1-inch NPT Inlet Outlet, Heavy Duty Steel Mounting Bracket, 4 Screws, Wrench - Image 5](https://m.media-amazon.com/images/I/71rqG3yhnAL.jpg)

## Available Options

This product comes in different **Size** 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
- 10" x 4.5" Whole House Sediment Water Filter, SimPure 5 Micron 10-inch Big Water Filter Replacement Cartridge Compatible with W15-PR, DGD-5005, FP15B, HD-950A, GXWH35F, GXWH30C for Well Water 4-Pack
- 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 Japan*
*Store origin: JP*
*Last updated: 2026-01-23*