Product review (4 stars): good price, but pay attention when installing
After you install, make sure to snip the water supply and attach with a new compression nut if you have a copper supply. We had a loud buzzing coming from the new, replacement valve. After 4 (yes, four) visits from our HVAC guy, he figured out that the aftermarket solenoid was fitting was a hair too small, as a result, the copper supply was rubbing against the valve mechanism. He snipped the supply, put on a new compression nut, reattached and it worked like a charm!