Geberit cistern waste into 110mm soil pipe

[HurdyGurdy]

Hi

I’m trying to find something that will connect a geberit 90mm toilet waste pipe into a standard 110mm soil stack. The geberit cistern came with an adaptor that increased the outside diameter of the pipe to 110mm. However this is the same diameter as the soil stack pipe. Is anyone aware of how to connect this continental pipes into uk pipes?

Thanks in advance.

 

[ShaunCorbs]

A 110mm coupling and the adapter

https://www.NoLinkingToThis/p/floplast-push-fit-double-socket-pipe-coupler-black-110mm/47977