Hayward Valve Seat Gasket for VariFlo Valve Assemblies | SPX0715D C8425 and fiberglass swimming pools

and fiberglass swimming pools

Cure: Allow the finish to air dry for at least 3 days (at 75°F or higher) before filling the pool with water

Reusing a partially worn shaft seal after wet-end disassembly is a leading cause of repeat seal failures

and Pentair commonly use this configuration — but always cross-check your filter's model label or owner's manual

For direct heater replacement (MasterTemp 125

Hayward Valve Seat Gasket for VariFlo Valve Assemblies | SPX0715D C8425 and fiberglass swimming poolsThe Hayward Valve Seat Gasket (SPX0715D) is the OEM replacement sealing gasket for Hayward VariFlo side mount, top mount, and XL control valve assemblies. This gasket seats at the valve body to maintain a pressure tight seal between the valve rotor and housing. Replacing a worn or damaged seat gasket restores proper sealing, preventing bypass and ensuring accurate flow direction through filter, backwash, rinse, and waste positions. Specifications