Description
The Mastercool 90065 5 CFM Two-Stage Vacuum Pump provides reliable evacuation performance for professional A/C service work. Because it uses a two-stage design, the pump pulls a deeper vacuum while improving overall efficiency during evacuation.
This vacuum pump helps remove moisture, air, and non-condensable gases from automotive and HVAC A/C systems. As a result, technicians can prepare systems properly before charging refrigerant. In addition, the integrated gas ballast valve helps reduce oil contamination during the early stages of evacuation, which supports longer oil life.
The 90065 includes a clear oil sight glass, so technicians can check oil levels quickly before operation. Therefore, routine maintenance becomes easier and more consistent. Built for daily professional use, this pump performs reliably in both shop and mobile service environments.
Key Features
-
5 CFM airflow capacity for efficient evacuation
-
Two-stage vacuum design for deeper vacuum performance
-
Integrated gas ballast valve to reduce oil contamination
-
Sight glass for quick oil level verification
-
Durable construction for professional service environments
-
Designed for continuous duty operation
Applications
-
Automotive A/C evacuation
-
HVAC and refrigeration service
-
Moisture and non-condensable removal
-
Vacuum hold testing
Specifications
-
Manufacturer: Mastercool
-
Part Number: 90065
-
Pump Type: Two-stage vacuum pump
-
Airflow Rating: 5 CFM
-
Application: Automotive A/C and HVAC service
-
Duty Rating: Continuous professional use
Operating Highlights
-
Oil must be added before operation
-
Gas ballast valve should be opened during initial evacuation
-
Clean, vacuum-rated pump oil is required for optimal performance
-
Regular oil changes help maintain deep vacuum capability






Reviews
There are no reviews yet.