Review on FJC 6018 R134A Coupler Adapter by Bruce Cavett

This is what you need to fit a Robinair 18192 R134A quick coupler kit to your Yellowjacket manifold hoses. Robinair couplers and a set of Yellowjacket gauges make an excellent combination for diagnosing and refueling your car's air conditioning system with R134a freon. I have used USA made Robinair quick disconnects, the only problem is the quick disconnects are 14mm threads which require a 14mm male threaded brass coupler (FJC 6018) and the Yellowjacket manifold hose requires a 1/ 4 inch male thread. 4 SAE that are not included. with one of these products. So this is what you need to combine the two together.