The relief valve is located on the side of the air compressor's pressure switch. If your relief valve is attached to your switch by inserting through a hole on the side bracket, then this is your style. Order this if your valve is broken. If this valve...

Old Part Numbers: 308, JC800-41, FC022050003This part is sold as 1 per packaged, if you need to replace them all, then order qty 3.

Condor Pressure Switch, MDR2/11 Type 95psi cut-in, 125psi cut-out. If your pressure switch is leaking out of the small bleeder valve on the side or if located underneath, order a tank check valve instead, your pressure switch is ok.