Shower arm wall outlet

Have been asked to install a single arm shower wall outlet for a customer.

They have purchased the product already from an auction website.

The product has come with very little instructions.

Does anyone have any experience of fitting these showers.

Here is a link to a similar product. -

Square Fixed Head Thermostatic Concealed Shower

All help greatly appreciated.

Tom

this any use?
Part-2) - How to replace, prepare & install shower valve -- installation for DELTA Atl - YouTube

Make sure its on a stud wall for these types of showers, shower arm will most likely have a 1/2" BSP male thread but may not have any fixing so all you can do is use a backplate elbow and screw it into there and brace everything with plywood.

Make sure the 1/2" backplate elbow is positioned so that when its tight, it ends up pointing downwards and the chrome coller sits against the tiles with no thread showing.