Project Source PS-WHS-CB2 helps protect your home's appliances and fixtures from sand, soil, silt, sediment, dirt, and rust as well as taste and odor in your home's water supply. Designed to fit Project Source housings (PS-WHS-HV and PS-WHS-H). This "universal fit" filter can also be used in many other manufacturer's standard filter housings like AO-WH-PREV, AO-WH-PRE, WHKF-DWH and WHKF-DWHV, formerly availble from Lowe's. Used in the incoming water line to filter all of your home's water. In additiona to filter options that specialize in particulate reduction, Project Source also offers designs to reduce sediment and improve taste.