Hayward Valve Seat Gasket, for SP0740DE | SPX0740D Dimension One or repeated heater cycling

or repeated heater cycling

Replace only with the same size and rated model

the BT36K trim kit is engineered specifically for Napoleon fireplaces

This battery supplies power to compatible SR Smith pool lift operator systems

Hayward Valve Seat Gasket, for SP0740DE | SPX0740D Dimension One or repeated heater cyclingWhat This Part Is Used For The SPX0740D valve seat gasket installs in compatible Hayward SP0740DE multiport valves. It seals the valve seat to prevent internal water bypass between ports. Why This Part Matters A worn seat gasket can allow water to bypass internally, leading to poor filtration or backwash issues. That may show up as debris returning to the pool. Replacing the gasket restores proper valve sealing and flow direction. Key Features and