Not used yet it was bought as a replacement for one on a muddy fox hydration pack so hopefully it will fit.
I bought this bite valve to replace the original Nathan valve that has split. The new valve was better as it has a really useful lock function! It’s very easy to suck water through and the fit is perfect. Amazing value and a great product.
These valves are much easier to turn on and off compared to the previous version but they are a bit bigger.