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Amazon.com: 2L inc, Adjustable Vacuum Pressure Switch, 5A, 11120, Vacuum 5-30 in Hg : Industrial & Scientific
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Series MVS | Miniature Vacuum Switch is a compact, lightweight, and adjustable which is designed for OEM applications. Other applications include HVAC, dairy systems, medical, office equipment, and pump control. | Dwyer Instruments
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Amazon.com: 28146SW Brake Vacuum Switch Vacuum Pump Switch for 12V Electric Brake Booster Electric Vacuum Pump Kit : Automotive
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