osVAC F32-H27 Festool D27 Hose Adapter
This adapter is screwed on a Festool D27 hose and ends with the FEMALE part of the osVAC sytem. It is also equipped with a slipring system (rotating part) so your hose won't get tangled up.
The design is not perfect as I designed it with Tinkercad but it works and that is good enough for me