4" to 6" exhaust adapter

This is an adapter to take 4 inch hose (dust collector hose, metal dryer hose, etc) and adapt it to a 6 inch wall exhaust.

I used PETG for strength with a little bit of flex. You'll need duct tape or weather stripping to air seal the parts together. You could use soft filaments, but I wouldn't rely on the friction fit alone for sealing the joints.

Standard supports should be all you need for a good print.