Airtight Filament Drybox Feed Through

This is a remix from awesome drybox designed by mcfada https://www.thingiverse.com/thing:1359419

I made few changes to the original design because I find it quite hard to just rely on glue to adhere printed part on the drybox itself. So, I added two M4 screw holes on each part. Slot for M4 nut on the back side. This make installation much more secure and easier to align. Add few layers of glue between pieces would make it airtight as well.

Parts needed
1 x Pneumatic connector http://s.cli