Gast Rotary Vane Pump Product Number: GASTRVP Description: This deluxe model pump can operate more than one vacuum press.  One way check valve, included on all Gast Vacuum pumps, allows you to turn off pump without losing suction. Specifications: 115 volts motor Shipping Weight: 39 lbs Features: This deluxe model is capable of handling multiple vacuum pans Air cleaner included to filter out dust and harmful particles that can damage pump Exhaust silencer to assure smooth, quiet operation Vacuum pressure gauge One way check valve