Waterway 1" Notched Air Control [1-5/8" HS, 2-3/4" FD] [Grey] (660-3577) essexgroup Helps provide manual shutoff and

Helps provide manual shutoff and flow isolation

This part has practical value because the DPST-NO configuration and 18VDC coil rating help preserve intended compatibility in supported electrical systems

or when longer screws are needed for the service situation

this timer helps support dependable daily scheduling and more confident long-term equipment control

Waterway 1" Notched Air Control [1-5/8" HS, 2-3/4" FD] [Grey] (660-3577) essexgroup Helps provide manual shutoff andThe Waterway 660 3577 notched air control is designed for compatible spa air systems and uses a 1 5 8 inch hole size with a 2 3 4 inch face diameter in grey. This type of control helps regulate the air introduced into the spa system, which can influence how the jets feel and how the overall hydrotherapy experience is tuned. The grey finish makes it a strong match for spas with cooler toned shells or trim, and the notched design supports compatibility