Our 6CFM HVAC vacuum pump delivers fast evacuation, reaching an ultimate vacuum of 5 Pa. Equipped with a pure copper motor, 1/4" SAE and 1/2" ACME ports, and a bottle of 0.35 qt. vacuum oil, it easily repairs automotive or smaller-scale HVAC systems like R22, R134a, and R410a. | Vevor | | Vacuum Pump, 6 CFM, HVAC 2 Stage Rotary Vane Vacuum Pump, for R134a R22 R410a Systems, Auto AC Vacuum Pump Kit | Orange;Silver | Best Buy