Fits Micro-Clear DE and Super Star-clear cartridge filters * Fits all Hayward micro clear filters both resin and stainless steel * Recommend additional purchase of DEX2400Z3A O-ring * May require purchase of ECX270861 pressure gauge * Air relief assembly replacement * Also fits Micro-Clear vertical grid D E filter * Also fits hayward super star-clear cartridge filter models c2000, c3000, c4000, c5000 * Fits hayward pro series high rate sand filter models s210sv, s244sv * Weight 8.6-pound