The Humphrey 1/8" 4-Way Position Dash Mounted Air Control Valve is the perfect solution for controlling the flow of air in your pneumatic system. This valve is designed for dash mounting, making it easy to install and use. It features a standard thread size for pneumatic connections and the position of the valve spool inside in turn controls the flow of air through the valve. This valve is ideal for controlling the flow of air in a variety of applications. FleetPride is your First Click in Heavy Duty®.