Square D,PRESSURE SWITCH 600VAC 12A F SPECIAL,220 PSIG,30 psi,70...150 psi,A600,DPST,General Purpose (Indoor),NEMA 1,Pressure Switch,Pumptrol,Screw Clamp,UL listed, CSA,control small electrically driven air compressors,maintained manual cut-in lever (AUTO-ON)-quick connect two-way pressure release valve (for use with polyflow tubing)