Geberit Wall Drain

[Onoff]

So I'm planning this Geberit wall drain:

 

 

Actually the shorter version, their 457.538.00.1 shown below. Towards the end of the above video they show simply putting on the "ready to fit set" which I assume is either the 154.335, 336 or 337 below.

 

I'm at a loss then what the 154.338, 339 or 340 is for. Any ideas? Unless I'm missing something the video doesn't show these?

 

 

[PeterW]

338 and 339 are for tiling on to so you can fit flush to the wall. 340 is a threshold strip to stop water running out of the shower area. 

[Onoff]

40 minutes ago, PeterW said:

338 and 339 are for tiling on to so you can fit flush to the wall. 340 is a threshold strip to stop water running out of the shower area. 

 

Cheers. So if not fussed I put a 335, 6 or 7 on and it sits proud of the tiles?

[PeterW]

1 hour ago, Onoff said:

 

Cheers. So if not fussed I put a 335, 6 or 7 on and it sits proud of the tiles?

Yep that's the one 

[PeterW]

Actually looking at it i think it fits nearly flush ...