0.8 to 9 in Hg, 0 to 28.3 in Hg, Vacuum Switch - 2FH47|9016GAW21 - Grainger
Automatic Vacuum Switch, Highwell Dust Control Autoswitch for More Power Tools, Delay Vacuum On/Off to Prevent Circuit Overload and Tripping, Adjustable Actuation Threshold - Walmart.com
Vacuum System Pressure Control Switch Pump Regulator Attenuator:Full Range from Upto 29 inch Hg, Adjustable Range and Span Differential Pressure: Amazon.com: Industrial & Scientific
i-Socket Autoswitch Workshop Tool and Vacuum Switch - Rockler
Remote Control Vacuum - FastCap
Pressure Switch Air Compressor Pressure Control Switch Vacuum Switch Valve Control Switch Vacuum Switch Valve 1/4 - Switches - AliExpress
iVAC Automatic Vacuum Switch - Lee Valley Tools
604V Series Pressure Switch | Telematic Controls Inc.
Amazon.com: FEXON Vacuum Control Switch Solenoid Valve Replacement for Mitsubishi Pajero Montero Sport MB620532 MR430381 K5T47776 K5T81794 : Automotive
Air Logic Vacuum Switch - 1/8" NPT: $29.50 - Part Number:V5100-28-PM-B85-10A