Aqua EZ 100-sq ft Pool Cartridge Filter Element C8610/PA100 Hayward Cartridge Aqua EZ 100-sq ft Pool Cartridge Filter Fits Hayward 100 sq. ft. cartridge filter systems Pleated filter element Replacement for : Unicel C8610, Pleatco PA100, Hayward C100RE Replacement for : Star-Clear II, OEM CF1100RE, Hayward C-1100 & OTHERS