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. R12 , R134a , R22 , R410a , R404 , R502 etc. The item "7 CFM 2 Stages Refrigerant Vacuum Pump Refrigeration Gauges Tools Air Condition" is in sale since Friday, October 5, 2018. This item is in the category "Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Hydraulic & Pneumatic Motors".The seller is "snow*boy" and is located in Auburn, NSW. This item can be shipped worldwide.