7  CFM Two Stage Refrigeration Vacuum Pump is a device used to purge air conditioning and refrigeration systems of contaminants such as moisture and air. 

Used in The HVAC industry,vacuum forming, scientific and printing industry, fiberglass infusion, anywhere a deep vacuum is needed.

Key Feature:
Excellent heat-dissipation capacity - robust die cast aluminum housing and cooling fan make the pump cool and run efficiently for a longer time.
Oil Anti-flow back Design - the air passage is specially designed to prevent oil from flowing back to contaminate chamber after pump stopped.
Suitable for all refrigerants. R12 , R134a , R22 , R410a , R404 , R502 etc