Waterway 1" Notched Air Control [1-5/8" HS, 2-3/4" FD] [Black] (660-3571) horizonventures A properly selected replacement helps

A properly selected replacement helps preserve the intended schedule behavior of the equipment instead of forcing the user to adopt a less suitable substitute

more finished look to the jet area

Includes 24 inch cord

Helps restore a cleaner and more readable panel surface

Waterway 1" Notched Air Control [1-5/8" HS, 2-3/4" FD] [Black] (660-3571) horizonventures A properly selected replacement helpsThe 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