similar experience as previous post the base does not match the opening on my cans and leaks excessively. tapping it down any tighter would probably damage the opening lip. if I get real hard up I'll file the inside wall of the nozzle base down to fit the can opening. Had high hopes for this nozzle. A little better quality control and this might work okay. One point; the tube is very large and I doubt seriously you could use it for anything but diesels or farm equipment, not for unleaded gas cap openings

I am not really happy my my nozzle. It is slooooow, we are talking 5+ minutes to empty 1 five-gallon can. Additionally, it leaks out of the breather hole that is supposed to relieve suction so that gas can pour more easily (I suspect this is why it is so slow). I really do not like mine and am looking for something to replace it, probably a super-siphon.

This is the best nozzle I have seen for the NATO fuel cans. The ones that were made totally out of metal were junk and I am glad these are available now. One thing to know is they will leak if you do not seat the lever down as tight as possible. I usually tap them down with the stick I use to pop the lever tops off. The nozzle even has a brass screen to catch anything that might be in the tank. Nice deal.