Pressure Switch, Differential 2.2 to 54 psi, Range 1 to 58 psi, Port Type 1-Port 1/4 in FNPT, Contact Form 1NO/1NC, NEMA Rating 1, Actuation Type Diaphragm, Action Standard, Series MDR-F, Factory On/Off Setting 15/40 psi, AC Contact Rating 15 A @ 250...