Yellow Jacket, a brand of Ritchie Engineering Inc, has been offering a wide range of tools and equipment for the automotive and HVAC / R industries. Its extensive catalogue includes charging systems, diagnostic tools, specialised gauges, refrigerant recovery and vacuum pump systems, charging hoses, leak detectors and monitors. Yellow Jacket vacuum gauges are designed for monitoring air pressure inside engines and industrial machines for nautical research and development applications. These gauges feature a patented thermal conductivity sensor for compensating the temperature and an automatic shut-off mechanism for reducing the power usage when not in use. Yellow Jacket vacuum pumps are ideal due to their oil reservoir port with a wide mouth opening allowing easier filling operation. These 2-stage rotary vane pumps also have a completely sealed chamber to prevent oil leakages and are capable of displacing liquids at a maximum rate of 8 cfm. Choose from a wide range of these products along with hand ratchets, manometers and manifold gauge set accessories from Yellow Jacket on Raptor Supplies.