Loose, 2 leaks and poorly assembled. I had to replace a broken o-ring to stop a small leak. I also sealed ALL the fittings with teflon tape to make sure they were properly sealed. It's very accurate and works well, but I spent 20 minutes getting it right before I could use it. The seller contacted me and asked me not to leave negative feedback until I contacted them and I told them about the problem, after that I never got a reply. I'm sure they would have replaced it but I needed it and couldn't do the repacking/reshipping etc. In my opinion it is a quality control/assembly issue. maybe it was ok. However, after fixing the above issues, I will say that it still works fine. *** Update 10/14/2016 The company contacted me, apologized and refunded the full cost. This and they tell me to keep the item. I am impressed. Nowadays it is a pleasure to work with a reliable company!