Hayward CCX1000Z5 O-Ring Replacement for Hayward Xstream Filtration Series CC10092S and CC15093S, Set of 2 O-ring for gauge adapter and air relief Fits hayward xstream filtration series full-flow cartridge element models cc10092s, cc100922s, cc10092sft, cc10092stl Also fits xstream filtration series models cc15093s, cc150932s, cc15093sft, cc15093stl, cc10093stufft Also fits Hayward Star-Clear cartridge filter models C225, C250, C500 Weighs 2 pounds