Balboa Slimline Air Control [1-1/16" HS x 2-1/2" FD] [White] (10-2510-WH) pumpparts A part like this is

A part like this is useful because it helps provide service access to the strainer area while also maintaining a dependable seal for cleaner pump operation

Helps verify ozone-system activity quickly

That makes the long format especially practical for field use

more complete user experience overall

Balboa Slimline Air Control [1-1/16" HS x 2-1/2" FD] [White] (10-2510-WH) pumpparts A part like this isA slimline air control can make a spa feel easier to fine tune while keeping the visible control area clean and streamlined, and this Balboa version is designed for compatible white finish applications using a 1 1 16 inch hole size and 2 1 2 inch face diameter. When the original control becomes stiff, faded, or unreliable, replacing it can make the whole seat feel more enjoyable again. The 2 1 2 inch face gives this version a bit more visible presence