Tecmark TDI Maintained TBS-306 is a singe function, SPST latching spa air switch that mounts in a 5/16 inch hole. This TDI air switch is SPNO (single pole, normally open) and rated to 25 Amps. Threaded mounting connection includes lock ring nut.
Tecmark TBS 300 Series air switches are functioncontrols for safe air actuation of spa and hot tub equipment like pumps, blowers and lights. Connects with 1/8 inch air hose (sold separately).