Balboa TP500 Overlay [Jets/Aux/Light] (17183) pooltool This Waterway lock-nut is a

This Waterway lock-nut is a practical replacement when the original retaining nut is worn

Helps restore long-format channel-drain coverage

Helps restore vacuum-sensitive control behavior

When a partial grid becomes torn or worn

Skimmer collars are commonly replaced when they crack

Balboa TP500 Overlay [Jets/Aux/Light] (17183) pooltool This Waterway lock-nut is aA topside overlay is one of the fastest ways to make a control panel feel fresh and readable again, and this Balboa TP500 Overlay is designed for compatible Jets, Aux, and Light applications where the original face has become faded, peeling, or hard to read. When the visible labels start to wear down, even a functioning topside can feel older and less dependable than it really is. The Jets, Aux, and Light layout gives this overlay its practical value