Generic 90-423-5368 7.75" ID 0.187" Cross Section Buna-N O-RingSpecification:Application - Category: Filter, Cartridge, Filter, Sand, Pump, PoolApplication Manufacturer: Hayward, Jandy/Zodiac, PacFab/Pentair, Sonfarrel/Martec/Advantage, Sta-Rite/Pentair, WatercoApplication Model: C400, C500, FHPF, FHPM, HydroStar (2-1/2") Self Priming Semi-Commercial, JHP Series, JHPU Series, Pinnacle High Flow, SuperFlo, SuperMax, Tagleus TA100, Tagleus TA100D, TL Series Above Ground PressureApplication - Part: Lid, Trap Lid, Valve Adapter, VoluteManufacturer Part Number: 205106, 355619, CX400G, R0480300, R0555400, WC634075AS568 Number: 368O Reference Number: O-465O-Ring Inside Diameter: 7-3/4"O-Ring Cross Section: 3/16"