The 20 VIH Whole House Water Filter System 150166 is ideal for residential, commercial, and industrial water filter applications, The Valve-in-Head (VIH) patented technology allows for easy water filter cartridge replacement, The Valve-in-Head involves a simple half-turn of the shut-off valve in the cap to shut off the water supply when changing a water filter, No need to purchase additional shut-off valves (saves 10), The pressure release button on the cap allows for release of the whole house water filter pressure in order to more easily unscrew the sump from the cap, Whole house water filter housings extend the life of washing machines, water heaters, and other household appliances by reducing sediment before it reaches the appliances, Leaking and clogging is prevented by the dynamically sealing, self-cleaning o-ring, The 20"" standard whole house housings have thick walls for increased strength, Dimensions: 22-5/8"" x 5-1/8"" (575 mm x 130 mm), Maximum Temperature: 125F (51, 7C), Initial ?P (psi) Flow Rate (gpm): 4 psi 8 gpm (0, 3 bar 30 L/min), Maximum Pressure: 125 psi (8, 62 bar), Housing: Polypropylene (Blue), Cap: Reinforced Polypropylene, Valve Parts: Delrin, O-Ring: Buna-N, SKU: CWD2065