Key Product Features: Complete Complete set 20 inch blue housing,with plastic wrench,screw and metal bracket.Housing only, filter cartridges are sold separately . Pack of 4 sets. Air release valve Equip with pressure release button for high pressure . Inlet/Outlet: 1" NPT and brass thread. How it works? Please refer above photo. Specification: Maximum Pressure: 90 psi (6.2 bar) ,Suggested Work Pressure:50-60 psi,Temperature:40-110°F/5-45°C , Shelf life: 5 Years. Note: 1. Please lubricate the o-ring with silicon grease and use wrench provided to prevent leakage. you may search "whole house water filter " on YouTube, there is some video about this housing, it is very helpful if it is the first time to install it. 2. Protect filter housing from freezing. 3. This filter housing has a maximum operating pressure rating of 90 psi, if you suspect that your water pressure will at any time exceed 80 psi, a pressure regulator MUST BE INSTALLED before the filter housing. this action will guard against the water pressure exceeding the maximum pressure rating.it is recommended that the pressure regulator be set at 60 psi or less. 4. 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. More valuable information: 1. What is dimension of the housing? ANSWER: It is standard sized housing for 4.5"OD x 20" height filters . 2. What is in the box? ANSWER: 4 x 20 inch blue housing with pressure release , 4 x plastic wrench ,4 x metal bracket and 4 bags screw. 3.What is filters options? ANSWER:1).PP spun filter, Remove sand, dirt, sediment. life time:6 months. 2).Carbon block filter, Further remove chlorine, taste & odors, very fine particulates. life time:6 months. PS.The Life Time of the Filter Cartridge Depends on Usage Amount and Feed Water Quality. We list more options for matched filter cartridges and other size housing: Whole House 12 GPM UV Water Filter– 55W PP Sediment Replacement Filter,Remove silt sand particles 4.5"X 20" 5 mic Carbon Block Water Filter,Remove chlorine taste odors- 4.5 " x 20 " 5um Whole house blue housing,fit all standard size 4.5 x 20 Inch filters-Pack of 3 Whole house big clear housing,fit all standard size 4.5 x 20 Inch filters 2 Stage Whole House Water Filter System w/ 4.5"x20" Blue Housing PP Carbon Buying Options Buying Options Buying Options Add to Cart Add to Cart Add to Cart Customer Reviews 4.3 out of 5 stars 123 4.5 out of 5 stars 303 4.3 out of 5 stars 406 4.1 out of 5 stars 174 4.1 out of 5 stars 324 3.9 out of 5 stars 62 Price $169.31$169.31 $58.49$58.49 $79.04$79.04 $142.49$142.49 $56.99$56.99 $170.70$170.70 More water filters and housings options no data no data no data no data no data no data PP and carbon filters, 5 mic ,4.5“x 20",Pack of 4 PP and carbon filters, 5 mic ,4.5“x 20",Pack of 6 Pleated PP Sediment Filter Cartridge,4.5"X20"-Pack of 4 String Wound PP Sediment Water Filter,4.5"X20"-Pack of 4 2 Stage Whole House Water Filter System w/ 4.5"x10"Blue Housing PP Carbon 2 Stage Whole House Water Filter System w/ 4.5"x10" Big Clear Housing PP Carbon Buying Options Add to Cart Add to Cart Buying Options Add to Cart Add to Cart Customer Reviews 4.7 out of 5 stars 103 4.5 out of 5 stars 8 4.5 out of 5 stars 97 4.2 out of 5 stars 83 4.2 out of 5 stars 191 3.7 out of 5 stars 99 Price $67.99$67.99 $131.09$131.09 $75.99$75.99 $62.04$62.04 $103.73$103.73 $119.69$119.69 More water filters and housings options no data no data no data no data no data no data