Product review (1 stars): Falsely advertised compatibility, buyer beware.
I consulted our Samsung RSG257AAWP User Manual before making this purchase and confirmed that we use DA29-00003B water filter.  The product doesn't fit our system.  If you compare the locking systems they do not match.  The one on the left is the filter we had and the one on the right is this product.  As can clearly tell the locking system is different and doesn't work with our refrigerator.