I am fitting a vertical shower in an old bathroom and just realised the wall is a cavity wall is this possible and how. Could somebody PLEASE help me.

Not sure what you are referring to as a cavity wall. Most walls have open spaces between the studs -a cavity. Plumbing is run in them. Please clarify what you consider a problem.

Yes, I too do not understand what you are saying. Is this a brick home?

The wall was a main brick wall where the house used to finish beforer the extension was built. And I want to fit a verticle shower "http://www.bathroomsuitesdirect.co.uk/showdetails.asp?id=463"
I just wanted to know if I could fit this on a main wall.
Sorry about the confusion earlier

I looked at the link you posted and it appears to be a shower valve with a shower rail... right? If this is the case then I think you are asking if you can install a shower valve like this in a main, brick wall, right?

If that is what you are asking then I need to ask you if you have cold winters there where you live? If so, then the answer would be NO, do not install this shower valve on the outside brick wall. Instead, I would recommend that you build a "FALSE WALL" on the inside of the outside wall and then install your valve inside of that wall... make sense?

Let us know more here, OK?

Mark

Hi mark thanks for the help. The walls is on the inside now. As there's extension built so the wall isn't too cold.
I have found a fitting that I can use. On the wall. Thanks a lot for your help though.