Amazon.com: Stainless Steel 1/8 Inches Pneumatic Adjustable Pump Pressure Switch QPM11-NO Normally Open : Tools & Home Improvement
Dreyoo 40-80 PSI Water Pressure Pump Pressure Switch Assembly for 12V 24V 110V 115V Water Pump, Adjustable Pressure Switch Replacement Kit Compatible with Most Brands of Water Pumps - Amazon.com
12V Adjustable Vacuum and Pressure Switch with PNP or NPN - China Pressure Sensors, Pressure Transmitter | Made-in-China.com
1/4" 15-150psi Adjustable Air Pressure Switch 12 volt
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VerRich 12V Water Pump Diaphragm Pump with Pressure Switch High Pressure Pump with 2 Adjustable Hose Clamp for Motorhome,Caravan,Water taps(3/8" (10mm)) : Amazon.co.uk: Automotive
Jforall New 12V Adjustable Water Low Pressure Switch 50 Psi - China Digital Pressure Controller, Water Pump Pressure Switch Controller | Made-in-China.com