Product Details: Equip your vehicle to be Ready for the Road Ahead™, with the Airsource 1/8'' NPT Air Solenoid Valve, a key device that provides advanced control of fluid movement and timing. By utilizing a specialized design, this replacement valve is able to automatically manage the flow of fluids in the pneumatic system by either purging excess amounts or allowing more in. Built with reactive electric components to offer a rapid response time and increased reliability. FleetPride is your First Click in Heavy Duty®.