Square D FHG12J52XCP Pumptrol Pressure Switch Pump, 95-125 PsiUniversally accepted and recognized design is easy to wire, features drift proof cut in and cut out settings and has visible vertical contacts which are easy to inspect. Highlights: Minimum Pressure : 95 psi Maximum Pressure : 125 psi Usage : electric air compressors Includes a 2 way pressure release valve 1 4 inch NPT female connection Off at 125 psi with 2 way pressure release valve Suitable for control of small electrically driven air compressors