100x100x30mm to 120x120x16mm HEPA Filter Adapter

Adapts a small 100x30mm HEPA filter to 120x16mm
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updated December 19, 2025

Description

PDF

Had a bunch of 100x30mm filters on hand for the DELACK enclosure, built the Lack enclosure and used this passthrough exhaust design, but didn't want to buy filters until I had to.

Designed in Solidworks, will probably work for other 120x16mm spaces, but the cutouts on this model are specific to this original design. Easy print, just need to support under the filter overhang I made to hold the filter in place

Model origin

The author remixed this model.

Differences of the remix compared to the original

Add-on part to the filter housing on the bottom for smaller filters (mine are for use in the DELACK enclosure)

License