Hayward GVA-24 24 Volt Valve Actuator rotates 2 and 3-port valve automatically. When used with controllers, actuators will automate pool to spa operation, cleaner operation, water features and a wide variety of other applications. Compatible with all major manufacturers' valves and controllers. Unique cam setting feature ensures a quick and easy installation with precise control of water flow. Design allows actuatore to be mounted in any position. Up to 180 degree rotation with 12.8 degree increments. 3-way manual switch and 20' cable included.