Review on 🌀 R134a Air Conditioning Adapter Kit with Adjustable Quick Coupler - High Low AC Freon Manifold Gauge, Hose Conversion - 1/4 SAE HVAC by Mike Hernandez

I have used these adapters at least a dozen times and so far they are working as they should. I read several reviews that said they had trouble removing the high pressure coupler after using it. I dip my pinky in compressor oil and stick it in the end of the coupler before I put them on to lubricate the small ball bearings in the pair and they come off with little to no effort. I would buy them again and recommend them to a friend.