< 20" Big Blue Housing for Whole House Water Filtration System, 1” Brass Port, Mounting Hardware Included! Made by: Unit Price: $52.99 Product Description: 20" Big Blue Housing for Whole House Water Filtration System with 1" Inlet / Outlet Brass Ports Pressure Relief Button (RA-124-20) – is proper for high-flow and heavy sediment applications. The blue housing body is made of reinforced polypropylene for strength and resistance to chemicals, and the black cap is made of high-flow polypropylene for toughness. The black cap has 1" inlet / outlet brass ports which allowed better sealed connections to the corresponding pipes. There is rubber O-ring on the top of the housing body to ensure a watertight seal. A pressure relief button on the inlet side of the cap releases pressure in the housing for changing filter cartridges. This Housing for use in various high-flow applications and is usually placed in the main water line entering the house including, but not limited to residential drinking water filtration, food service, and irrigation. Easy to connect multiply housings in one Custom Whole House Water Filtration System to fit your specific needs. This Housing Can Be Used With Following 20” X 4.5” Filter Cartridges (Sold Separately): Sediment Water Filter Cartridge Pleated Washable Sediment Water Filter Cartridge Block Activated Carbon Water Filter Cartridge Granular Activated Carbon Water Filter Cartridge Special Water Filter Cartridge Product Features: 20” Full Flow Housings 1” Inlet / Outlet Brass Ports Pressure Relief Button Initial Pressure Drop: 1 PSI Maximum Operating Pressure: 60 PSI Operating Temperature: 39°F~125°F (4°C~52°C) Wall Mounting Bracket Housing Wrench Sets of Screws WARNING: OPERATING PRESSER NO MORE THAN 60 PSI What you get in this Set: Big Blue Housing Housing Wrench Bracket Set of Screws