This Intermatic PE24VA 24 volts is a Motorized Valve Actuator that is designed to provide reliable control for both two way and three way diverter valves for water features and pools and spas. The water flow can be dialed into your specific applications through the adjustable cam inside the actuator. The adjustable cam will rotate the valves to multiple settings. To set-up, you simply remove the lid and adjust the cam settings.