HF360B 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. The HF360B whole house filter system includes a P5 cartridge and SW-2A filter wrench. Additional replacement cartridge options available are SCWH-5, S1A, CW-F, CW-MF, and P1. Cartridge replacement dimensions: 2.5 In. W x 9.75 In. H x 2.5 In. D. 5 year limited warranty.