ARKSEN Rotary Vane Deep Vacuum Pump, 1/3-HP, 3CFM Air Conditioner Refrigerant HVAC 1/4" Flare Inlet Port Quickly and effectively removes moisture and air from air conditioning systems Direct drive motor allowing easy starting and is maintenance free Oil Sight Glass For Monitoring Oil Levels, ON/OFF Power Switch Lightweight cast aluminum construction for maximum durability Built-in high volume cooling fan for extended use, Comes With a Bottle of Vacuum Oil