Universal Electric Solenoid (Air Valve) can be used for multi Purposes, such as air horns that require an on-board air system and more.
Operates with any 12 volt electric system. When the vehicle's horn button is depressed, the Solenoid becomes electrically energized, opening its chamber and permitting air to reach the horn. The solenoid remains engaged as long as the horn button is depressed. Max 150 PSI. Easily attaches to any 1/4" air hose with its brass fittings. Comes complete with all needed hardware and installations instructions. Made out of metal housing.