6 Inch Duct Hanger - Mounting tape
thingiverse
Also included in this pack of 140mm to 6 inch duct stuff (https://www.thingiverse.com/thing:5449104), but I thought I'd post it on it's own since it's probably more useful than any of that Simple 6 inch duct wall mount, 12.5mm thick to fit half the width of Gorilla mounting tape.
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