4" Duct / Dryer End Cap
thingiverse
This is a simple cap to place on the end of a 4" piece of duct work. Instructions I made this in order to block flow from my dryer duct since I have a y connector for ventilation from my laser cutter/engraver. I basically just disconnect the dryer exhaust hose and place the cap on the hose connection which keeps my home free of smoke and ensures I dont have any smoke run into my dryer.
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