Presair - Tinytrol Mini Air Switch, SPST, 21A, Alternate, TVA411F

PresAirTrol Tinytrol SPST miniature Alternate Latching Action air switch TVA411F with 1/2"" Threaded Mount and lock ring nut, and a Center Air Spout. SPNO, single pole, normally open. Alternate Action is Push and the device remains ON, push again and it will Turn Off. Used on an air actuated spa control systems, controls two devices. Tinytrol air switches are recommended for air hose runs of less than 20 ft. 2 wire terminal connections on this general hot tub air switch - common (always used), NO normally open (usually used). Connects with 1/8"" air hose, sold separately.