I needed an Adapter for my Caramba Auto 9.0 to connect it to a regular 35mm hose. Luckily it turned out, that the Einhell TC vacuum has the same connection port.
The adapter is used to connect a regular 35mm hose you can find on eBay. The other end of the hose is connected via adapter to an Festool D 27/22 DM-AS/CT 500668. You can find that here: Festool Cleantec D 27/22 DM-AS/CT Adapter by spencerandhill | Download free STL model | Printables.com
Fits on a hose with 35mm inner diameter and 42-43mm outer diameter.
I took the Caramba/Einhell Port from Adapter for Einhell TC TV 1930 S to DN50 by Woodenti | Download free STL model | Printables.com
and the thread from Festool Cleantec D27 DM-AS CT Adapter by Big Rocket Project | Download free STL model | Printables.com
Print with supports!
The author remixed this model.