Print both sides, and glue them together. Than it fits into regular fittings into the fridge. (my fridge is a "frigidaire" a brand owned by electrolux home products, Canada)
Let me know if that fits for other brands?
Also, It is a good subject for a remix! If you want, you can adapt it for other fridge brands.
In the picture, you'll see some tape, it is because I printed right side first with too thin walls. So on the left side, (with the same thickness I uploaded to thingiverse), the walls are very thick. You might want to reduce walls thickness depending how well you know your printer.
Hope you like it!