40mm to 50mm adaptor

[SamHLM]

I'm fitting the below outside and plan on connecting the branch to an aco drain. I thought the branch would accept a 50mm pipe but it's slightly smaller so Im guessing the max size it takes is 40mm.

Square Hopper 110mm | Toolstation

www.toolstation.com

Is there any sort of boss adaptor that I can use to upsize from the 40mm branch to a 50mm pipe? I've seen plenty of reducers like below but I need the reverse if that makes sense?

FloPlast Solvent Weld Reducing Coupler 55 x 43mm White - Screwfix

Order online at Screwfix.com. Solvent welded, with ABS fittings. Suitable for domestic and commercial use. FREE next day delivery available, free collection in 1 minute.

www.screwfix.com

Thanks

 

[CBW]

Perhaps something like this is needed?