Top 10 Best 20 water filter housing in 2026

Last Updated - 6/26/2026

🏆Best Choice

SimPure

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

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•PREMIUM QUALITY: Tested against 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. If you need a more efficient whole-house water purification solution, choose our latest ultimate water purification solution: DB20P-3
•UPGRADE DESIGN: Compared to other inline water filter housing for leakage complaints, SimPure's 20" x 4.5" filter housing thicken and raises the threaded holes, making sure no water leaks from the mounting hole after long-term use
•EASY INSTALLATION: The BB 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 Brass PORT: The BB water filter housing with 1" NPT Brass 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. (The filters and push fittings need to be purchased separately)
•COMPATIBLE CARTRIDGES: The SimPure DB20 BB housing fits for universal standard 4.5 “ x 20 ” filters cartridges, fits for Whirlpool, Aqua-Pure, Geekpure, Ronaqua, etc. Also fits for the whole house water filtration system DIY. (Filter cartridges are sold separately)
•Note: Brass threads offer superior sealing. Avoid excessive use of Teflon tape during installation to prevent damaging the brass threads and causing more severe water leaks
•About O-ring: If you need an O-ring suitable for DB20P, please search for B09TR53SD1
•Tips: Given the large size of this whole house water filter housing, please consider the space required to install and replace the filter element according to the size of the product, whether it is suitable for your installation area

View offer on:

$69.99

Check Price

SimPure

5 Micron 20 Inch Big Whole House Sediment Water Filter, 20" x 4.5" Water Filter Cartridge Replacement for SimPure DB20 Blue Housing, WGB22B, WGB32B, AP802, BB20B, BB20T, 2-Pack

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•【PREMIUM SEDIMENT FILTER】This SimPure big sediment filter has a triple-layer design of a sparse layer, a compaction layer, and a precision layer. It can effectively trap dirt, sand, silt, dust, rust, and scale particles as small as 5 microns.
•【WHY 5 MICRON】5 micron one is the most popular carbon water filter at present. Compared with higher micron rating filters, it reaches a balance of sufficient residual chlorine removal and high water flux. SimPure is 30% more efficient than most water filters. Never falsely advertised!
•【20" UNIVERSAL FILTER】This whole house water filter has standard size of 4.5x20 inches. It can effectively remove dirt, sand, rust and other particles from water. It is compatible with many other sediment filters in the market, such as FP25B, DGD-5005-20, SDC-45-2005, FPMB5-20 and P5-20.
•【POLYPROPYLENE WATER FILTER】SimPure big water filter is made of pure polypropylene, a material that can withstand chemicals and corrosion. This type of filter can remove sediments and other impurities from the water before it reaches the point of use. The SimPure sediment water filter can also serve as an effective pre-filter for other filtration systems in the house.
•【LONGER FILTER LIFE】The well water filter can filter up to 15,000 gallons of water and you should replace the filter every 3-6 months. When used in combination with other filters such as CTO filter, the SimPure fine PP sediment filter not only delivers clean and refreshing water to every faucet in your home but also extends the lifespan of your appliances.

View offer on:

$35.69

$41.99

-15%

Check Price

Pentek

Pentair Pentek 150233 Big Blue Filter Housing, 1" NPT #20 Whole House Heavy Duty Water Filter Housing with High-Flow Polypropylene (HFPP) Cap and Pressure Relief Button, 20-Inch, Black/Blue

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•OFFERS THE VERSATILITY TO MEET ALL OF YOUR LARGE-CAPACITY FILTRATION NEEDS, including high-flow and heavy-sediment applications
•FITS ALL Pentair Pentek 20" Big Blue cartridges and any 20" x 4.5" heavy duty filter cartridge
•EXTRA LARGE HOUSING allows for greater cartridge capacity, reducing the number of vessels required for high flow-rate applications
•PRESSURE RELIEF BUTTON ON CAP for easy cartridge changes
•DOES NOT INCLUDE MOUNTING HARDWARE or wrench. Specs are 1" NPT inlet and outlet port on high-flow polypropylene (HFPP) cap

View offer on:

$66.55

Check Price

MewMore

MewMore WHB20 Whole House Water Filter Housing, Fit 20"x4.5" Sediment etc Filters for Well and City Water, Big Filter Blue Pre-Filtration System for Home, 1" NPT Port, Pressure Release

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Superior Sealing: The MewMore WHB20 whole house water filter housing Fit for 20"x4.5" Sediment etc Water Filters with Pressure relief button, 1 inch inlet, Brass thread port and Double O-ring, making sure no water leaks after long-term use. Note: Avoid excessive use of Teflon tape during installation.
•Quality & Safety: The big filter housing blue is made of high-flow reinforced polypropylene, which is resistant to corrosion and water pressure. Food Grade Material, Lead-Free, and BPA-Free. Non-toxic, odorless. Fits NSF standard, providing a healthy, safe water-filtering experience.
•Easy to Install: The whole house water filter housing comes with all tools required for installation, including 1 heavy-duty steel mounting bracket, 1 wrench and 4 screws. Pressure relief button on cap for easy cartridge changes.
•DIY Inline Water Filter Housing: There is a possibility to obtain several completes to be mounted parallelly (two or three stages) for a better filtration quality. 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. (Filter cartridges are sold separately)
•Compatible Cartridges: The MewMore WHB20 big water filter housing blue fits for all universal standard 4.5” x 20” filters cartridges.
•O-Ring Please search on Amazon: B0CJMLLKBT

View offer on:

$62.99

Check Price

iSpring

iSpring HB28B Whole House Water Filter Housing, 20" x 4.5" Universal Housing for Whole Home Water Filtration w/ 1" NPT Ports Pre-Filtration System

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Whole House Protection: Perfect for installation in main water lines to protect appliances like water heaters, washing machines, and showers by filtering out sediment and other particles.
•Standard Size Compatibility: Fits all 20" x 4.5" water filter cartridges, making it a versatile option for various whole house water filtration systems.
•Durable Construction: Made from reinforced polypropylene for enhanced strength and chemical resistance, ensuring long-lasting performance and safe, clean water.
•Pressure Release Button: Built-in pressure release button allows for safe and easy filter replacement by relieving internal pressure before opening the housing.
•Easy Maintenance: The included wrench simplifies housing removal and filter replacement for hassle-free upkeep.
•High-Flow Capacity: Designed with a 1" inlet/outlet for fast water flow, ensuring efficient water distribution throughout your home without pressure loss.

View offer on:

$72.99

Check Price

Geekpure

Geekpure 20 Inch Clear Whole House Water Filter Housing - 1" NPT Brass Port (1)

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•20 Inch clear housing,1"brass NPT inlet/outlet,with plastic wrench,screw and metal bracket ,air relase valve easy to replace
•Clear housing allows you to see when you need to change filters and everything else works as it should
•It is Installed at the main water supply and produce pure water for your entire home. Enjoy better water from every tap and every appliance in the whole house
•Fits standard sized 4-1/2 inch diameter by 20 inch whole house cartridges.Large capacity housing for high flow applications. Matched filter cartridges options, please refer and search product ASIN: B07798RFVH | B07JM78FXT | B07JNL4QFS | B07TNJ86KZ | B07TPLK752 | B07JMMGND9 | B081DH69JX via Amazon
•Pack of 1,Housing only. filter cartridges are sold separately.NOTE:THE MATERIAL OF CLEAR HOUSING IS NOT STRONG AS BLUE COLOR HOUSING,SUGGESTED WORK PRESSURE IS UNDER 50 PSI

View offer on:

$56.84

$59.84

-5%

Check Price

Geekpure

Geekpure 20 Inch Whole House Water Filter Housing-1" NPT Bras Port -Fit 4.5 x 20 Inch Filter -Blue(1)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Pack of 1 Set 20 inch Jumbo blue housing,1"NPT inlet/outlet,with pressure release button for high flow,plastic wrench and metal bracket.Housing only, filter cartridges are sold separately
•STANDARD-Fits all standard sized 4-1/2 inch diameter industry 20 inch whole house cartridges
•Large capacity housing for high flow applications,Flow rate : 5-15 GPM (Depend on Feed Water Pressure)
•PURE-It is Installed at the main water supply and produce pure water for your entire home. Enjoy better water from every tap and every appliance in the whole house
•ISO9001:2015 certificated Manufacturer ,1 year limited warranty, Matched filter cartridges options, please refer and search product ASIN: B07798RFVH | B07JM78FXT | B07JNL4QFS | B07TNJ86KZ | B07TPLK752 | B07JMMGND9 | B081DH69JX via Amazon
•If your original housing is not Geekpure, please replace the top cover and housing body together. Alternatively, you may obtain a replacement from your original brand if you don't want to re-install

View offer on:

$54.99

Check Price

AIRTHEREAL

Airthereal Whole House Water Filter Housing, 20" x 4.5" Sediment Carbon Cartridge Universal Housing, Pre-Filtration System for Well and City Water, 3/4" NPT Port Clear Housing Include 1-Pack PP Filter

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Premium Construction: Crafted with premium quality to meet NSF standards, reinforced polypropylene housing ensures strength and chemical resistance to provide you with safe and healthy filtered water.
•Transparent Monitoring: The transparent housing allows full visibility of the filter's status so you know when it needs to be cleaned or replaced. This feature enhances user convenience and ensures timely maintenance.
•Enhanced Leak Protection: Our 20" x 4.5" filter housing boasts an upgraded design with thickened ports made of brass and a double O-ring system. This ensures a secure and leak-free performance, addressing concerns about water leakage reported in other similar inline filter housings.
•Simple Installation: The housing comes complete with all necessary tools for installation, including a wrench, heavy-duty steel mounting bracket, and screws. It features a standard 3/4" NPT inlet and outlet, fitting most water lines.
•Effortless Maintenance: Airthereal makes maintenance a breeze by providing a user-friendly design. The red pressure release button aids in simple filter replacements, ensuring a hassle-free experience for users.

View offer on:

$79.99

Check Price

CRZQXOUR

2PCS Stainless steel 10" and 20" Water Filter Housing bracket，Water Filter Housing Stainless Steel Fixed Bracket，Machine Metal Housing Fixed Bracket，water filter rack

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•List content: 2 stainless steel fixed bracket for water filter.
•The water filter housing bracket is made of stainless steel, which is durable, resistant to various climates, will not break even in storms, reliable quality, not easy to bend or break, and can be used for a long time.
•The water filter is fixed to walls, columns, or some panels using stainless steel brackets, which are not easily deformed and very durable.
•Both 10-inch and 20-inch water filter housing brackets are designed for effective water filtration system support, which means you can easily place or replace the brackets as needed, please check the dimensions before buying.

View offer on:

$9.99

Check Price

Pentek

Pentair Pentek 150070 Traditional Standard Filter Housing, 3/4" NPT #20 Opaque Water Filter Housing with Mounting Bracket Cap, 20-Inch, Black/Blue

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Blue SUMP MANUFACTURED with rugged reinforced polypropylene offers excellent chemical resistance and is ideal for many residential, commercial and industrial applications
•FITS ALL 20" x 2.5" standard replacement filter cartridges
•DESIGNED WITH THICK SUMP WALLS for increased strength and reliability
•LEAK PROOF SEAL to ensure optimal performance
•3/4" NPT INLET AND OUTLET PORT and reinforced polypropylene standard bracket-mounted cap

View offer on:

$63.61

Check Price

📊

📈 How we rank

With our cutting-edge technology, we examine thousands of products and retailers, assessing reviews, ratings, trends, and sales rankings to identify what matters most to users like you.

Our team evaluates this data alongside genuine user feedback, merging AI analysis with human insights to provide you with real-time, highly-rated recommendations that empower your decision-making with clarity and confidence.