Refrigerant Oil Checker A/C Quick Oil Checker Analyzer Tester AC System 10pcs

Refrigerant Oil Checker R134a R1234yf A/C Quick Oil Checker Analyzer Tester. This is Refrigerant Oil Checker, it is fit for R134a R1234yf systems, will not work on R12/R22 systems. Put an oil phase tester on the low side valve and press the.

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