Merrill MPSHD4060 Heavy Duty Pressure Switch

Merrill MPSHD4060 Heavy Duty Pressure Switch -Preset On/Off: On @ 40 psi/Off @ 60 psi -Pressure Setting Min. On/Off: On @ 40 psi/Off @ 70 psi -Pressure Setting Max. On/Off: On @ 170 psi/Off @ 190 psi Quality Benefits: -240/600 Volt Three Phase 5HP Pump -120/240 Volt Single Phase 3HP Pump -Extra Large Case for Wiring with Heavy Duty Gauge Wire -Each Turn of the Adjustment Screw= 14 psi