Chester Paul Co. believes in and recommends the Pentair/Pentek line of FILTER HOUSINGS. NSF component listings and extensive testing separate Pentek housings from all others. Our extensive line of FILTER HOUSINGS offers a wide assortment of sizes, inlet/outlets connections and other options including, for example, caps with molded-in brackets and meter mounts. Pentek housings have long set the quality and value bar for the rest of the industry.