Wisepick AC Oil and Dye Injector Kit, Suitable for R134A R1234YF Refrigerant System, with Adjustable Coupler and Oil Checkers

Wisepick AC Oil and Dye Injector Kit, Suitable for R134A R1234YF Refrigerant System, with Adjustable Coupler and Oil Checkers

Aupoko R1234YF to R134A Low Side Quick Coupler, R1234YF Low Side Quick Coupler, R12 to R134A Hose Adapter Fitting Connector for Car Air-Conditioning AC