Pressure Control Switches: Type - Pressure Switch; Operator Type - Diaphragm; Pressure Media - Air, Water, Liquids, Gases (non-corrosive); Circuit - SPDT; Contact Rating - 120/240V 10/5A; Operating Range - 10-150 psi; Line Pressure - 225 psi Max; Connection - 1/4" NPT female; Manufacturer Series - Pressuretrol L404