Balboa Slimline Air Control [1-3/4" HS x 2-1/2" FD] [Black] (10-2310BLACK) airbuttonparts A thread sealant helps support

A thread sealant helps support leak-resistant threaded connections in compatible plumbing applications

White finish for a clean spa surface appearance

or fail intermittently

300W design with ceramic element supports intended feature set

Supports more consistent jet pressure throughout the spa

Balboa Slimline Air Control [1-3/4" HS x 2-1/2" FD] [Black] (10-2310BLACK) airbuttonparts A thread sealant helps supportA black slimline air control can give the spa a more dramatic visible accent while restoring the everyday usability of the control point, and this Balboa version is designed for compatible applications using a 1 3 4 inch hole size and 2 1 2 inch face diameter where the original control has become worn or less responsive. When an air control no longer feels easy to use, the whole seat can feel less satisfying than it should. The 1 3 4 inch hole size