MAT - EDI

Campbell Hausfeld air compressor pressure switch.  Important: If the 90-degree unloader valve leaks constantly (where the 1/4" bleeder line installs) after the compressor shuts off, you have a...

Intake valve for the "WL" series Campbell Hausfeld oil-free pump. If air leaks out of the intake filter or if the compressor just isn't performing like it should, order this kit. A loss of pressure...

120/150 PSI pressure switch for air compressors. If your valve is leaking on the side of the switch, do not order this part. Order check valve instead. 

  (A.O. Smith) Unit bogging down? Replace this if no continuity.If needle drops to zero and slowly rises, it is probably good.