34970 Robinair Air Vac Air Powered Vacuum Pump
The 34970 AIR-VAC is a Venturi-type vacuum pump powered by compressed air and designed for mobile air conditioning service. The pump has an air consumption of 4.2 SCFM and will pull a vacuum up to 29.7 inches of mercury at sea level. Oil or water in the air line will not harm the pump; it will be exhausted through the pump.