XtremepowerUS 1/2 HP Two Stage Vane Vacuum Pump 5 CFM Air Conditioner Refrigeration HVAC Air AC A/C R410a R134 110V 60Hz 1/2hp Motor 5 CFM Two Stage Vane Vacuum Pump High Efficiency & Low Noise With Internal High Volume Cooling Fan for Extended Use Heavy Duty Aluminum Alloy Casing Oil Drain Plug Positioned at Bottom of Oil Reservoir