Airtech Liquid Ring Vacuum Pump. Type VI8-GRD.0017. 3400 rpm motor, Pmax of 45 mbar and Qmax of 11.4 m^3/h. I bought this pump new open box and could not figure out how to make it work properly so I am getting rid of it now. My loss your gain. The silver tube is the start capacitor for the motor. Being sold as is. Make an offer.