20 Inch x4.5 Inch Big Blue Clear Whole House Filter Housing 1 inch Ports W/ Pressure Release. 2 x 20 inch x 4.5 inch whole house clear filter housing 1 inch NPTF in/out brass ports. Double O ring with pressure release button with additional pressure gauge hole with block cap fitting is included can be open and add pressure gauge in the future if required. 2 x 20 inch x 4.5 inch transparent clear double o ring filter housing with pressure release button and 1/8 inch NPTF pressure gauge hole only. (no pressure gauge included) 1/8 NPTF Pipe thread Brass Allen Plug with oring are included. Feed water pH range: 4.0 – 10.0. Double O ring Housing. NPTF in/out Port Sizes: 1 inch. Easy screw off for quick filter changes. Accepts standard 20 inch x 4.5 inch diameter water filter cartridges. Clear Filter housing for easy maintenance, allows for visual inspection of filter cartridge. Rated for pressures up to 90 PSI (6.20 bar). Maximum operating temperature 125°F (52°C). Made from FDA grade polypropylene. Head/ Cap Color : Black. Sump/ Housing Color : Clear. Preferable feed water pressure range: 20 – 90 PSI to Get the best filtration results keep it less than 60 PSI. Maximum feed water TDS: 2000ppm. Flow Rate / GPM. 1-40 GPM for 1 inch Inlet / Outlet. 1-35 GPM for ¾ inch Inlet/Outlet. Pressure drop will be determined based on feed water pressure, filter cartridge selection, fluid viscosity, filter life and conditions. The item “2 x 20 x4.5 BB Clear Whole House Filter Housing 1 Ports With Pressure Release” is in sale since Wednesday, October 27, 2021. This item is in the category “Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters”. The seller is “reverse.osmosis” and is located in Niagara Falls, New York. This item can be shipped worldwide.