R1234Yf Dye Injector, AC Dye Injector with Shut-Off Valve, AC Oil Injector for R1234Yf R134A, Upgraded R1234Yf Oil Injector Kit with Adjustable R1234Yf R134A Quick Couplers, Oil Checkers. 【For R1234yf & R134a Systems】The Boltigen ac oil dye injector compitable with the adjustable r1234yf and r134a quick couplers, not only fitting for R1234yf refrigerant system but also R134a refrigerant system, you deserve this Boltigen r1234yf & r134a dye injector kit.
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