The Orbit Replacement Solenoid is interchangeable with Orbit, WaterMaster, Richdel, Lawn Genie, and Rainjet electric valves and has a 24 VAC, 50/60 cycle. The solenoid is a crucial switching device that connects the valve and the timer, so repair and replacement of the solenoid is necessary to maintaining your valves" high performance. Orbit is dedicated to offering a full line of user-friendly irrigation products and accessories that benefit from Orbit"s status as the industry leader in technology advances. You can be sure their state-of-the-art designs result in rugged, dependable products--just what you"ve come to expect from Orbit, dedicated to conservation through innovation.