Review on Wadoy Replacement Pressure Switch Control Valve for Central Pneumatic Air Compressor Parts - 90-120 PSI, 240V by Mark Colbert

Was easy to install but as others have noted I had to drill and tap for the larger (6-32) ground screws. The pressure setting was set too high so it went over 125psi before I turned it off. I had to adjust it almost halfway to get it to 110psi. I suggest you release it 1 turn to start, then increase it in small increments. (Yes, I know it's a bit of work!) But for $11 I have a new device that should last another 30 years. The store's repair proposal was more than a new compressor.