COMPLETE-Complete one set 20inch big blue housing, 1NPT inlet/outlet, with pressure release button for high flow, plastic wrench and metal bracket. STANDARD-Fits all standard sized 4-1/2 inch diameter industry 20 inch whole house cartridges. HIGH QUALITY-Fits NSF standard, Large capacity housing for high flow applications. Maximum Pressure: 90 psi (6.2 bar) , Temperature:40-110°F/5-45°C , Shelf life: 5 Years. What is dimension of the big blue housing? It is 4.5″OD x 20″ height. What is in the box? 20inch big blue housings with pressure release , 2pcs plastic wrench , 2pcs metal bracket. Bracket screws(not include expansion screw). What is filters options? PP spun filter, Remove sand, dirt, sediment. Life time:6 months. Carbon block filter, Further remove chlorine, taste & odors, very fine particulates. The Life Time of the Filter Cartridge Depends on Usage Amount and Feed Water Quality. Please lubricate the o-ring with silicon grease and use wrench provided to prevent leakage. Protect filter housing from freezing. The rubber o-ring provides the water tight seal between the cap and the sump. It is important that the o-ring be properly SEATED IN THE GROOVE of a water leak could occur. Elow is more options and matched filter cartridges. The item “2 Packs 20 Inch Big Blue Whole House Water Filter Housing 1 Inch Outlet/Inlet” is in sale since Wednesday, January 16, 2019. This item is in the category “Home & Garden\Home Improvement\Plumbing & Fixtures\Water Filters & Filtration Parts”. The seller is “geekpure” and is located in Dallas. This item can be shipped to United States.