Square D by Schneider Electric 9013FSG2J20 Air-Pump Pressure Switch, NEMA 1, 20-40 psi Pressure Setting
Pressure switch with 20-40 psi pressure setting range activates an electrically driven water pump within a power circuit when the adjustable rising and falling thresholds are reached
Switch works with a 1.5 hp or less pump, has an adjustable differential range of 15-30 psi, and has a cut-out range of 20-65 psi
NEMA 1 enclosure has a 1/4" NPSF internal fluid connection