Review on NQN Conditioning Refrigerant Compact Adapter by Andrew Burnside

3 stars because I made sure they work. Pros: They are cheap compared to well-known quality brands. They didn't seep through the ball valve. The carving was smooth. The bad: The sealing sleeves on the fittings are complete nonsense. literally had to replace them, too big. Luckily I had spare parts on hand. I've posted pictures of the grommets they came with. The wall/cup that the grommets sit on is very thin. All three cups were not bent in a circle. After replacing the appropriate Teflon spacers, I was able to shape the cups with flat nose pliers. If you compare the cup to some higher quality tubing, you can see the main difference. I needed these valves in a pinch and let them work for the job. But I wouldn't recommend them unless I came across the worst packaging on the shelf. They don't work without some tweaking. If the bad were eliminated, it would easily be 5 stars.