Refrigerant Recovery Tank with Floating Switch VEVOR 30 lb refrigerant recovery tank with a small amount of nitrogen is often used to recover refrigerant for household cars, refrigerators, air conditioners, etc. Previous page Next page What is the gas filled in the refrigerant recovery tank? The VEVOR refrigerant recovery tank is filled with a trace amount of nitrogen before leaving the factory. Please discharge the nitrogen filled in the tank before use. The tank can be used only when it is in vacuum. What kind of refrigerant is this refrigerant recovery tank applicable to? It's applicable to recovery of all refrigerants, including mainstream R134A, R-22, R-12, R410A, R404A, R502, R1234YF, R32, etc. When is the production date? All the refrigerant recovery tanks you received were newly manufactured within one year. What is the interface size of this refrigerant recovery tank? The interface size of Y-type valve is 1/4 "SAE, and it is equipped with 2 pcs 1/4" SAE to 1/2 "ACME brass adapters.