Can't find stock ROM T230NZWAXAR

[CIOS249]

I plan to root my Galaxy Tab 4 soon and I am told that if I need to use the warranty I will need to unroot it with the stock ROM. Problem is, Google and Bing yield no stock ROMs for part number T230NZWAXAR. Am I missing something? And the majority of sites hosting stock ROMs host ROMs for every and any country EXCEPT the United States.

I would dump the ROM myself but I read that also requires root, so I'd be dumping a modified ROM not a stock one.

Any suggestions?