Secret Jardin Universal Flange

I don’t think I can post the link, but it is a 2.75” tent flange that has the light blocking fabric on each side. I need to run a 2” pipe from one tent to another and my tents don’t have holes at the bottom. Was looking for something like the universal flange to install. Can’t find a good supply of this brand so curious if you all have seen something similar.

I think they have a 5” also