Waterway 1" Notched Air Control [1-5/8" HS, 2-3/4" FD] [Black] (660-3571) sandfilters That keeps the rebuild focused

That keeps the rebuild focused and efficient

Two jet systems often rely on simple controls

or no longer switches the connected equipment reliably

This part has practical value because the panel-mount format helps preserve original installation style while the 7-day capability adds greater scheduling flexibility

Waterway 1" Notched Air Control [1-5/8" HS, 2-3/4" FD] [Black] (660-3571) sandfilters That keeps the rebuild focusedThe Waterway 660 3571 notched air control is designed for compatible spa air systems and features a 1 5 8 inch hole size with a 2 3 4 inch face diameter in black. Air controls like this are used to manage the amount of air introduced into the system, helping fine tune the feel of the jets and the overall spa experience. The notched design is useful where the installation calls for that specific control style, and the black finish can be a good visual