big blue 20 inch water filter
20 inch water filter
20 inch water filter housing
20 inch sediment filter housing
4.5 x 20 water filter housing
4.5 x20 water filter
water filter 20 inch

SimPure Upgrade Big Blue 20 Inch 4.5" x 20" Water Filter Housing | Whole House Sediment Filter Cartridge | 1-inch NPT Inlet Outlet, Heavy Duty Steel Mounting Bracket, 4 Screws, Wrench



Premium Quality Big Blue 20 Inch Water Filter

The heavy-duty whole house big blue 20 inch water filter housing is made of Reinforced Polypropylene for strength and chemical resistance. The o-ring prevents leakage when filtering.

Upgraded Design 4.5 x20 Water Filter

Compared to other inline water filter housing with constant leakage problems, our 4.5" x 20" water filter housing is thickened and raises the threaded holes, ensuring no water leakage after long-term use.

Easy Installation Water Filter 20 Inch

The big blue filter housing comes with a wrench and built-in red pressure release button for easier filter replacement. Screw off, changing filter cartridges with the wrench.

Large Capacity

The big blue inline water filter housing has 1" NPT water inlet and outlet to ensure high water flow. It can filter large capacity of water and provide sufficient purified water.


20" x 4.5” standard whole house water filtration system set, fits all 4.5 “ x 20 ” filters cartridges (sold separately), like Whirlpool, Geekpure, iSpring, Ronaqua, Hydronix, Pentek, etc.

20 inch sediment water filter

Big Blue 20 inch 4.5 x 20 Water Filter Specifications

Brand: Simpure

Inlet / Outlet: 1" NPT Thread

Max Flow Rate: 20 Gallons Per Minute

Applicable Water Quality: Municipal Tap Water & Well Water

Housing Material: Food Grade Polypropylene

Compatibly Filter Dimensions: 20" x 4.5"

Working Water Pressure Range: 15-90 PSI

Applicable Water Temperature: 5-40 ℃ (41-104 ℉)

Easy Filter Replacement: Build-in Red Pressure Relief Button

Customer Support

SimPure®️ offers support over the lifetime of this 20 inch water filter! You can purchase with confidence knowing that we have your back if any issues occur.

Secure Payment

All SimPure®️ 4.5 x20 Sediment Water Filters come with a 1-year warranty from the date of purchase.

Simple Returns

You can return your undamaged product and packaging within 30 days of purchase to receive a FULL REFUND for any reason. Under certain circumstances, you may be required to pay the shipping cost for your return.