Balboa Slimline Air Control [1-3/4" HS x 2-1/2" FD] [Black] (10-2310BLACK) airbuttonparts while the M7 platform keeps

while the M7 platform keeps the assembly aligned with the heater design many compatible spas were engineered to use

Supports more consistent jet pressure throughout the spa

300W design with ceramic element supports intended feature set

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

or fail intermittently

Balboa Slimline Air Control [1-3/4" HS x 2-1/2" FD] [Black] (10-2310BLACK) airbuttonparts while the M7 platform keepsA 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