Brand new Air Compressor Control Valve (95-125 PSI Pressure Switch). It is comparable to a Furnas, Square D, and many more. The product has an On/Off switch and a unloader. It will be working on both 2 stage and single stage compressors. If your compressor does not need the unloader, you do not have to hook it up. PRESET 95-125 PSI ¼" COMPRESSION UNLOADER VALVE ¼" FEMALE NPT TANK CONNECTION WITH 3 EXTRA 1/4" PORTS. MAX AMPS, 20 AMPS AT 120VOLT / 12 AMP AT 240 VOLT , AND 9.6 AMP AT 3PH 240 VOLT BURST PRESSURE (PSI) 500 NUMBER OF PORTS 4 PORT TYPE 4-Port 1/4" NPT (Female) UNLOADER 1/4" Compression ACTUATION TYPE Diaphragm MANUAL SWITCH ACTION Auto/ Off PHASE Single CONTACT TYPE DPST AMPS 15 HP @ 1 PHASE - 120V 2 HP @ 1 PHASE - 230V 3 ENCLOSURE NEMA 1 TEMP. RANGE (F) -22 to 257 STANDARDS UL/CSA SERIES LF10 WEIGHT 0.850000