Reducing soil pipe from 110mm to 90mm

[Graeme000]

Hello,
I am looking to slightly extend (no more than 5-10cm) the connection between my soil pipe and a double socket branch.
The soil pipe will take a 90mm pipe and the exit from the branch is 110mm.
Can anyone suggest somewhere to buy a 'reducer' or alternative product that can help make this connection? It is perfectly straight, I don't need any angled connectors but I am really struggling to find anywhere.

Thank-you

 

[denso13]

Flexseal (Fernco) AC1155 Adaptor 100-115/75-90mm EPDM Flexible Rubber Boot Plumbing Coupling Pipe Connector : Amazon.co.uk: DIY & Tools

Shop Flexseal (Fernco) AC1155 Adaptor 100-115/75-90mm EPDM Flexible Rubber Boot Plumbing Coupling Pipe Connector. Free delivery on eligible orders of £20 or more.

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