Balboa VL406U 4-Button Topside [w/o Overlay] (G8247) heaterparts A Buna-N O-ring helps seal

A Buna-N O-ring helps seal a compatible connection point against leakage

2-3/8 inch hole size with 1-1/2 inch female pipe thread x 1-1/2 inch slip connection

Helps secure the body in place

Supports cleaner and more dependable filter maintenance

Balboa VL406U 4-Button Topside [w/o Overlay] (G8247) heaterparts A Buna-N O-ring helps sealA four button topside panel can make daily spa control feel simple and dependable again when the original interface has worn out, and this Balboa VL406U Topside is designed for compatible no overlay applications where the original panel has become unreliable or visually tired. When the main control surface begins to fail, the whole spa can feel less convenient and less polished than it should. The no overlay format adds flexibility when the visible