Yes... just done it tonight to sort my leaky shower out!
There is only one screw holding it on...where it says gainsborough etc.. on the front cover, just get a knife and flick that plastic bit off.
The front cover should now be loose - I then unscrewed the metal hose (at the bottom - so its separate from the unit).
Now, it should easily come off- just don't loose the screw like I just have!!
zoe, July 2008