Help with shower trap identification

[danjobbins]

Looking to identify this shower trap so I can buy replacement dome and flange as builders used one from a different waste which doesn’t fit correctly, subsequently a sewage smell is coming back up the pipe. Not keen to take up the tray to replace the whole thing.

Thanks

 

[breplum]

most all the plumbers here are based in north America and we don't have anything like that here. Cheers.