PRESSURE SWITCH, WATER PUMP, MANUAL SWITCH ACTION AUTO/OFF, (1) PORT, 1/4 IN FNPT, PRESSURE SWITCH FACTORY ON/OFF SETTING 20/40 PSI, NO PRESSURE SWITCH UNLOADER, PRESSURE SWITCH DIFFERENTIAL 15 TO 50 PSI, PRESSURE SWITCH RANGE 10 TO 100 PSI, PRESSURE SWITCH ELECTRICAL CONTACT FORM DPST, PRESSURE SWITCH ACTION STANDARD, NEMA RATING 1, SERIES DAYTON, HP @ 1 PHASE - 120V 1 1/2 HP, HP @ 1 PHASE - 240V 2 HP, TEMP. RANGE -22 DEGREES TO 250 DEGREES F, S