This part allows a portable AC unit to be connected to a 5" rigid ducting pipe for external venting. My case was through a conservatory wall (UK) during a heatwave.
Threaded side screws onto a 6" Portable AC Hose and the other side is sized to be inserted into 5" ducting. Please check size of your ducting before printing.
I printed at 0.3mm layer heights in PETG with no supports required. I chose to use a brim however this probably wasn't needed.
The author marked this model as their own original creation.