Air Compressor Pilot check valve unloader combination gas discharge 95-125 NG5 Unloader valve (continuous run unloader) for gas & electric powered air compressors 95-125 factory setting. pressure can be adjusted 30-40 psi up or down 1/2" FPT TOP Inlet x 1/2" MALE Pipe Thread outlet. comes complete with hand unloader and muffler/silencer. 30 scfm Rating THERE IS AN 1/8" PORT ON THE SIDE FOR A THROTTLE CONTROL VALVE OR CABLE.