Square D by Schneider Electric 9013FSG52J33M4 Air-Pump Pressure Switch, NEMA 1, 50-70 psi Pressure Setting, 25-80 psi Cut-Out, 20-30 psi Adjustable Differential, Low-Pressure Cut-Off

Telemecanique Sensors 9013FSG52J33M4 Air-Pump Pressure Switch, NEMA 1, 50-70 psi Pressure Setting, 25-80 psi Cut-Out, 20-30 psi Adjustable Differential, Low-Pressure Cut-Off

SENCTRL 0-30 PSI Glycerin Liquid Filled Low Pressure Gauge, 2.5" Dial Size, 1/4 NPT, Stainless Steel Case, Lower Mount, for Water Oil Air Pressure Test

MEASUREMAN 2-1/2inch Dial Size, Liquid Filled Pressure Gauge, 0-60psi/kpa, 304 Stainless Steel Case, 1/4inNPT Lower Mount