Segawe 2014 HOT Vacuum Pump 3CFM Rotary Vane Deep HVAC Air AC A/C R410a R134a FEATURES: 3 CFM single-stage rotary vane vacuum pump High efficiency and low noise Heavy-duty aluminum alloy casing Direct drive motor allowing easy starting which is maintenance free Oil sight glass for monitoring oil levels Oil drain plug positioned at bottom of oil reservoir Exhaust port with exhaust cap ON/OFF switch Non slip cushion handle Internal high volume cooling fan for extended use