Quote Originally Posted by Davestate
The adapter supplied with the HW100 is specifically for 232Bar cylinders as the threads are too short to create a seal on 300Bar bottles. If you've access to a lathe, simply turn down the adapter so it screws in further. Otherwise buy a 300Bar adapter from BAR or the likes...

Did not know that - when I bought my HW100 from new I fiited the supplied adaptor to my 300 bar bottle and it leaked at first. So I tightened it up a bit and it stopped. Never had any problems since.

I guess this may mean I have goosed the threads though