AquaHouse Water Softener sediment pre-filter system, can be used as a pre-filter for any home water softener It is recommended to install a sediment pre-filter before water softeners if there are levels of sediment / suspended particles in the water, as particles may obstruct the injectors within the system. Supplied with 5 Micron rated sediment filter inside the filter housing. Replace filter as required, dependent upon usage and water quality (replacement filter code: "AH-SED105BBWS?") Dimensions: Height: 49cm Diameter: 21cm. Connections: supplied with 3/4" BSP (22mm) male threads for Inlet/Outlet. Includes filter housing spanner, and wall mounting bracket. AquaHouse branded filter, Aquahouse is a registered trademark of Water Filter Man Ltd