The 8-15/16" 150 SqFt Waterway™ ClearWater II & Pro-Clean 150 Pool Cartridge Filter removes particles and debris from water, allowing for a cleaner environment. It features a strong injection-molded core. Break resistant bands are strategically placed to support the media and maintain pleat spacing. Robust end caps are made from a time-tested chlorine and mildew-resistant urethane system.