This is a door prop for a Dometic Refrigerator model 690470-05 used in the Airstream Bambi 16' Sport trailer to keep the fridge aired out during storage.
Should work with all Airstream 16' models from 1998-Present. This was designed for the 2019 model year.
It could work for other models, but there are slight differences between the latches, door angles, and other variations.
Should be printed with the long flat side facing down (sideways) with supports for the door side opening. No supports needed for anywhere else, including the tab, due to the slope.
Will likely not support the door being open during travel, so print it in a bright color so you remember to remove it before driving.
Printed in PETG due to the temperatures it'll likely see, but none of the other options should be important.
The author marked this model as their own original creation.