Product review (5 stars): Great filter, works for RSG257AARS, will buy again!
I have a Samsung RSG257AARS refrigerator, and this filter fits perfectly (after a time or two lining up the threads). I also have a soft water filter for the hard water at my home, and this filter seems to take out the "soft" taste that I was experiencing when we first moved into the home (old generic filter was left by previous owners). I would definitely purchase again.