Edwards RV3 are proven to be a leading vacuum pumps throught out vacuum pump industry. \n \nEdwards RV3 / A65201906 pump sets new standards for laboratory vacuum pumps, proven pump performance and outstanding quality speaks for itself. \n \nRV3 pump offers following features; \n \nAdjustable gas ballast - Excellent water vapor handling capacity \n \nPatented Inlet Valve - offers smooth opening and fast closing \n \nIntegral air bleed - offers quiet operation \n \nRV Series pump is equipped with Wide Range Voltage Motors - All major countries covered. \n \nMotor on/off switch. \n \nPatented Vacuum mode switch - High Vacuum or throughput in one pump \n \nEdwards 3 RV3 Vacuum Pump, Single Phase, 115/230 V, 50/60 Hz, Hydrocarbon Oil, A65201906