Don't run into these often anymore but I consider this to be great valve and was my valve of choice with the Imperial valet timer. They gave you a 5 year warranty if you used their valves and timer together. This valves solenoid also registers as a short on the Station Master. Says 10 watt 60 cycle on coil plate. Yes it was good and working. I didn't have a replacement diaphragm so I cut it out. I think installed in 82-83.