The Goldline Valve Actuator rotates 2-port and 3-port valves automatically. Use it with the Pro Logic system to automate pool/spa operation, cleaner operation, water features, or a variety of other uses. The industry standard configuration of the GVA-24 means that it is compatible with all major manufacturer's valves and pool automation systems. The unique cam setting feature ensures a quick and easy installation with the precise control of water flow.