Pentair 87300400 Body O-Ring Replacement Pool and Spa Filter Body o-ring replacement Fits Pentair Clean & Clear, Warrior aboveground, Clean & Clear/Predator pool and spa cartridge filter system Also fits Pentair EasyClean aboveground, EasyClean, Warrior pool and spa pool and spa D.E. filter system Measures 9-3/4-inch length by 1/4-inch height by 9-3/4-inch width