Waterway Spa Skimmer Weir [w/Foam Insert] [Grey] (550-4057) watertestkits Mushroom-style buttons are useful because

Mushroom-style buttons are useful because their broader top surface can make activation easier and more consistent in everyday use

or no longer holding the pump securely

When seal-related wear begins to affect the pump

A properly matched overlay keeps the interface intuitive and helps avoid the confusion that comes from using a visible face that no longer matches the underlying controls

Retrofit design

Waterway Spa Skimmer Weir [w/Foam Insert] [Grey] (550-4057) watertestkits Mushroom-style buttons are useful becauseThe Waterway 550 4057 spa skimmer weir is designed for compatible applications and features a foam insert in a gray finish. A weir like this is useful because it restores the moving skimmer door that helps regulate surface water entry into the skimmer body. The foam insert can be an important design detail in how the weir behaves inside the housing, so using the correct version matters. This Waterway gray replacement is especially practical when the