Gainsborough are gradually phasing out the oval shaped shower and are changing over to the new square shape.

If you want to replace your shower have a look here  http://www.showerdoc.com/new-showers/gainsborough/electric-showers

If you have the older oval shower and can’t see a direct replacement, then choose one of the new square shaped showers, the plumbing and electrics in the new Gainsborough showers are in the same positions as the older showers.