Air Bubble Controllers These are the spa side controls that allow you to mix minimum or maximum amount of bubbles. Do NOT confuse these controls with flow diverters. Diverters direct the water flow to different parts of the hot tub.
Air Control Button: In most cases you only replace the top visible hardware and the center core. You keep the old housing in place. To replace the housing usually is a large job requiring plumbing and gluing. The button and rocker air control is accessed by either a flat hand on the switch and turning counterclockwise (button style) or snapping off the outer button (rocker style). Air switches with knobs simply remove knobs and it will expose internals.