Hayward SPX3200UG Union Gasket Replacement for Select Hayward Pump and Filter Union gasket replacement Fits hayward tristar pump series sp3200ee, sp3200x, sp3600 Also fits hayward northstar pump series sp4000, sp4000x Also compatible with Hayward Max-Flo II, EcoStar pump and cartridge filter models SP2705X7(EE), SP2707X10/2, SP2710X15/2, SP2715X20/2, SP3400VSPVR, C5030 Weighs 3-pound