Summary

The part is meant to be glued to the shell of the Advanced Filtration System in order to vent filtered air out of the Original Prusa MINI Enclosure for cooling.

You can probably use multiple of the filter_vent_spacer_and_outside in order to get the spacing right.  I only used one in the picture shown. 

Parts:

• Glue to adhere to the case of the advance filtration system. I used a hot glue gun.
• 4 - M3 screws to attach the outside and inside 
• Drill and Drill bit.  You will need to modify the plastic sheet on the back of the enclosure to cut several holes in it for this to work.