Universal Spool Dry Container Port

Problem downloading files? here is a google drive copy

!! Manufacturer of the containers have changed the tooling and this part doesn't fit well.
version 2.0 on PRINTABLES

This is access port mod for my Universal Single Filament Spool Dry Container

I'm using this to reduce air exchange when filament is in use, it is design with place for a piece of sponge to restrict the air flow and maybe remove so dust particles.
I don't feel like I'm done with this design so I'm open for suggestions to what else to add to it, I have considered hole for the PTFE tube adapter fitting but I don't have any of those around.
Including CAD STEP file so you can modify it your self and don't be afraid to show off your mods, I would love to see your ideas.

Parts are made to be tight fit (on the containers I have) if yours feel loose don't use glue these containers are made of polypropylene (PP) and there is no glue that works well with it, instead try some double sided tape clean the surfa