ZENY 3.5CFM Single-Stage Rotary Vane Vacuum Pump for HVAC/Auto AC Refrigerant Recharging w/ R134a AC A/C Manifold Gauge Set Combo High Efficiency and Low Noise, Heavy-duty Aluminum Alloy Casing Oil Drain Plug Positioned at Bottom of Oil Reservoir,Internal High Volume Cooling Fan for Extended U Exhaust Port with Exhaust Cap, Direct Drive Motor Allowing Easy Starting Which is Maintenance Free Oil Sight Glass For Monitoring Oil Levels, ON/OFF Switch Non Slip Cushion Handle, Comes With a Bottle of Vacuum Oil