6 inch Duct Plate
thingiverse
https://www.thingiverse.com/thing:4802969 Designed to connect up to 6" duct. I'm using this connect to my laser cutter to the air filteration box I built. 4 holes for screws.
Download Model from thingiverse
With this file you will be able to print 6 inch Duct Plate with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on 6 inch Duct Plate.