Our 08 dometic 2 door fridge has adjustable door shelves. The bottom one
is the largest and is made to hold 1/2 gallon jugs, 2 liters etc.
Wife put in 2 half gallon milk and a glass bottle of wine and maybe something else. When we arrived at our destination (1000 miles south) the "bottle shelf" had broken at one end.
You can order them from various places online and probably your local RV
shop can get you one but they cost about $27 PLUS another $12 shipping.
This is the 2nd time we've broken that @#$%* bottle shelf.
Just giving you fair warning. Don't overload it- at least while on the bumpy highway. I believe it can be removed and if you're careful you can set those
items right on the bottom ledge of the open fridge and carefully shut the door. We did it- we had no choice- once it was broken and we were 2 weeks away from going home.
That way when you arrive you can -carefully- open the door and re-place shelf and put your 1/2 gallon items back in it.
I don't believe it will break from day to day use. I think it's the heavy
load and hours of rough roads that gets it.
When we had a boat, folks were fond of calling them a "hole in the water
that you toss money into". Guess an RV isn't all that much different.
The shelf consists of about 3 bucks worth of plastic and 25 bucks worth of
"we've got it, you need it, pay up".