ZENY 3.5CFM Single-Stage Rotary Vane Vacuum Pump for HVAC

Buy ZENY 3.5CFM Single-Stage Rotary Vane Vacuum Pump for HVAC/Auto AC Refrigerant Recharging w/ R134a AC A/C Manifold Gauge Set Combo (#2): Vacuum I also use it to de-gas red/white wine, when i use it for that, the pump stays on for a few hours at a time and never has an issue, it blows a little oil smoke, but

Amazon: TMS 3 CFM Single-stage Rotary Vane Vacuum Pump

Buy TMS 3 CFM Single-stage Rotary Vane Vacuum Pump R410a R134 Hvac A/c Air Refrigerant: Vacuum Pumps - Amazon FREE DELIVERY possible on Internal High Volume Cooling Fan For Extended Use Exhaust Port with Exhaust Cap ON/OFF Switch Non Slip Cushion Handle Comes with a Bottle of Vacuum

Amazon: 4.5CFM Single-Stage Rotary Vane Vacuum Pump

HIGH EFFICIENCY, EXCELLENT FOR HVAC REFRIGERANT RECOVERY. Product Features. Oil Drain Valve - Positioned at the bottom of the oil reservoir and angled for faster, more complete draining;; Oil Fill Port - Makes adding oil simple since the port is accessible from the front or either side;; The sight glass on the front