VIVOHOME 110-Volt 1/2 HP 5 CFM Dual Stage Rotary Vane HVAC Air Vacuum Pump with Oil Bottle X001ZE5N03 - The Home Depot
Kozyvacu Single-Stage Rotary Vane Vacuum Pump for HVAC/Auto AC Refrigerant Recharging, EPoxy Resin or Wine Degassing, Laboratory, Medical or Milking (TA350): Amazon.com: Industrial & Scientific
Rotary Vane Vacuum Pumps: Types, Applications, Benefits, and Design