Smartxchoices 4 CFM Electric Rotary Vane Deep Vacuum Pump R410a/R134a HVAC Air Refrigerant, Blue(VP135) Voltage /Frequency: 110V/60HzHigh Efficiency and Low Noise, Heavy-duty Aluminum Alloy Casing Flow Rate:VP135: 4 CFMOil Drain Plug Positioned at Bottom of Oil Reservoir,Oil Sight Glass For Monitoring Oil Levels Ultimate Vacuum: 5 PaInternal High Volume Cooling Fan for Extended Use,Exhaust Port with Exhaust Cap Power: 1/3HP;Inlet Port: 1/4" FlareDirect Drive Motor Allowing Easy Starting Which is Maintenance Free,ON/OFF Switch Non Slip Cushion Handle,Comes With a Bottle of Vacuum Oil.