Fitting a shower spray stop valve to a pipe

[Aj1]

Hey!

Would anyone have any tips and guidance to fit this stop valve onto this pipe, please? It is a valve for a shower spray and i’m wanting it to go right in so the chrome plate covers the tile. I’m aware that something may need to go behind the tile so anything to make that simpler would be ideal as access behind it is very limited. The copper pipe has also been capped off temporarily as shown in the image.

Thank you in advance.

 

[cross thread]

It needs a 1/2 inch bsp threaded fitting flush with the wall to look right ,or you can get a chrome one but it would be about 25 mm proud of the tile.

 

[Elkato531]

Is that for a bum wash douche hose next to the toilet?

Lets hope water regulations have been followed.