Len Gordon AS-V COMBO Control Designed to Operate 1 or 2, 24V Motorized Valves. System voltage, 120/240V at 1AMP. 50/60Hz, Includes Built in 24V Transformer. Can be Used with Intermatic Valve Actuator, part # 990555-000. Air Button Sold Separately - Recommend Len Gordon #10 or #15 Button Assemblies.