PRESSURE SWITCH, 30PSI, 1/8" NPTF MALE, FOR PRO-LITE WARNING LIGHT
Solimeta Air-Pump Pressure Switch 30-50 psi Pressure Setting, Pressure Switch for Water Pump, Well Pressure Switch, Pump Pressure Switch: Amazon.com: Industrial & Scientific
SUPCO High Pressure Switch: 1/4 in Female SAE, 0-650, 250, Opens On High Pressure, SPST - 2FBP9|SHP350250 - Grainger
SQUARE D Pressure Switch: (1) Port/1/4 in FNPS, 30/50 psi, 15 to 30 psi, 5 to 65 psi, DPST, Std - 5B412|9013FSG2J21P - Grainger
Air Pressure Switch 120-150 PSI Pressure Switch 1/4"-18 NPT Air Compressor Pressure Switch Pressure Controller High Pressure Switch 120V AC Pressure Switch DC 24v 12v Pressure Switch: Amazon.com: Tools & Home Improvement
KP34 pressure switch, G1/2, IP30, Manual reset
Amazon.com: Water Air Liquid Pressure Switch (Range: -0.2 Bar to 7.5 Bar) for Air Cabin, Water Pump Control, Steam Boilers and Industry Applications by Danfoss Model: KP35 (Pack of 3) : Industrial & Scientific
10 Series Pressure Switch - United Electric Controls
Square D 30/50-PSI Plastic Exterior Pressure Switch in the Water Pump Accessories department at Lowes.com