Review on Compressor Pressure Unloader LF10 4H 1 NPT1 4 95 125 by Rick Howlett

All I can say is you get what you paid for. I bought this part last December, installed it and verified that it turns on and that it works. I didn't leave it on long enough to fill the compressor so when it came time to use it I noticed it had a terrible leak so I figured it was my brass fittings. After replacing the fittings, it still leaks, and it turns out that it is at the bottom of the entire assembly. Apparently there is a gasket under the metal frame of the box and this frame had a slight crease so air leaked through the gasket. I called to see if I could get a refund but they can't do anything after 30 days and I understand that but just a warning that they aren't very well built.