R134a QC 2 PACK This set of high and low pressure couplers from Orion Motor Tech will let you quickly and easily service the R134a AC systems in both foreign and domestic cars, trucks, SUVs, and other vehicles EASY OPERATION These 5 and 6ball quick couplers snap down onto R134 coolant ports, sealing with easygrip knurled rings and opening valves using their top control knobs; closure and disconnection is just as fast and simple LEAKFREE SEAL Builtin Orings create a complete hermetic seal, significantly reducing the risk of refrigerant leakage and ensuring efficient operation while protecting environment SECURE CONNECTION Included flares provide reliable connections to 14 HVAC hoses or adapters, with the benefit of being easily detachable for straightforward replacement, enhancing longterm usability LONG SERVICE LIFE Premium threading and materials ensure years of helpful use, with the aluminum and nickelplated bronze construction offering high resistance to both wear and chemical corrosion