Collection: Spa Air Controls

Spa air controls are the unsung mechanical heroes of a hot tub — the air buttons on the deck, the bellows under the foot well, and the pneumatic switches that fire the pump when you press them. Our spa air controls collection stocks the full range: Balboa and Waterway air buttons in every hole size, Herga foot bellows and microbellows, Presair and Tecmark FF switches and sequencing switches, CMP and BWG/HAI stem assemblies in white, gray, black, and chrome — everything you need to fix a stuck button or a leaky bellow without tearing the deck apart.

Air controls work in matched pairs: a deck-mounted button or bellow generates an air pulse, and a pneumatic switch buried in the equipment bay converts that pulse into a 24VAC pump call. When a hot tub jet won't turn on with the button press, the failure is usually a cracked bellow leaking air or a tired switch that no longer registers the pulse. Our Spa Topside Panels collection covers the electronic alternative — touchpad-driven controls — but a properly maintained pneumatic system is dead simple to service and lasts decades. Reference Presair's pneumatic switch reference for SPST vs. SPDT wiring and momentary vs. latching operation.

When you replace a hot tub air button, measure two things: the hole size (1-1/8", 1-5/16", 1-3/4", etc.) and the trim diameter, both stamped in the product titles below. Crescent, scalloped, and notched faces are mostly cosmetic, but trim color and material need to match the deck. Matching tubing kits and replacement bellows live in our Spa Plumbing Parts collection, and the pneumatic switches that fire from these buttons are right here in this collection too. For switch-only failures with intact buttons, Tecmark publishes excellent datasheets on Sas-series sequencing switches.

Shop the full spa air control lineup below — buttons, bellows, FF switches, and sequencers ship from one of our ten U.S. warehouses for fast repair.