I created this little adapter piece in need of a way to get rid of the fumes from my 3d printer,
without having the possibility to have a hole in the wall.
It enables you to just simply drill a hole through the inner cover of your blinds' box, through which the fumes are pushed outside without having to open your window.
Designed for standard german DN75 PVC drain pipe.
This thing is part of my DN75 exhauster system, so check out the other designs, too!