325 Sq.Ft Swim Clear Cartridge Filter Hayward W3C3030Buy pool filter that reduces energy costs with 325 Sq. Ft Swim Clear Cartridge. Shasta Pool Supply provides the best value on Hayward filters. Specifically, all Hayward cartridge filters ship free. 325 Sq. Ft Swim Clear Cartridge The W3C3030 cartridge filter removes more debris and provides crystal clear pool water. Furthermore, this high capacity 325 sq. ft filter offers superior water clarity and energy efficiency. Therefore, the Swim Clear makes