The Pneumadyne Inc. Manual Air Control Valve Three-Way is a manually operated pneumatic valve that controls the direction of airflow in pneumatic systems. It has a brass body construction with a chrome-plated steel handle, and 1/4" NPT female ports. The valve allows switching between two output ports by turning the handle 90 degrees. It has a maximum pressure rating of 150 PSI and temperature range of -20 to 180°F. The compact and lightweight valve can be panel, surface, or stem mounted for directional flow control in industrial automation applications.