HF360 valve-in-head water filter extends life of washing machines, water heaters, and other household appliances. Reduces dirt, sand, silt, rust, and scale particles. Has built-in shutoff valve in cap for easy cartridge changes, clear housing for monitoring cartridge life. 3/4" inlet/outlet for installation on 1/2" or 3/4" main cold water lines. Dynamically sealing, self-cleaning O-rings prevent leaks and clogging. Filter housing wrench included. Use replacement cartridge model No. S1, CW-F, or P5 (not included). Cartridge dimensions: 13.25" H x 5" W x 5" D. 5 year limited warranty.