Old Part Numbers: SRV250170, 1229O-170Air compressor safety relief valve, 1/4" MPT, 170 PSI. If your valve leaks below the pressure listed on the side of the valve, replace this vital safety feature.Specifications MPT Inlet: 1/4 in. FPT Outlet: 3/8 in...

Old Part Numbers: 3168Air compressor pressure switch/manifold pipe plug, 1/4"-18 male NPT. A very common hex plug used on countless air compressors, this 1/4" NPT countersunk hex plug installs into any fitting or manifold that has an extra 1/4" female...

Air Compressor Pressure Switch, 120/150 PSI. Replace the pressure switch if the compressor no longer cuts in or cuts out at the designated pressure (PSI), if the unit doesn't turn on or off, or if there is an obvious air leak from the contacts or...

Campbell Hausfeld Pressure Switch Cover for MDR21 with Knob for air compressors. 

Old Part Numbers: ST170000AVTUBE WITH ELBOW FITTING ASSY.