Culligan HF-360 10″ x 2.5″ Filter Housing – The Culligan HF-360 Water Filter System is ideal for residential, commercial, and industrial water filter applications. The Culligan HF-360 Valve-in-Head (VIH) patented technology allows for easy water filter cartridge replacement. The Culligan HF-360 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. The Culligan HF-360 water filter system’s 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. If installed before appliances with a sediment filter, the Culligan HF-360 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 Culligan HF-360 whole house housings have thick walls for increased strength.