Product review (1 stars): LEAKS!!!
I took a chance on a substitute filter instead of paying $50 for the Samsung filter.  The neck of the filter where it connects to the fridge is definitely different than the manufacturer's filter.  It started leaking water into the deli tray within a day.  I took it out, tried to reseat it again and to no avail.  It continued to leak.

So, I threw it in the trash and went to Lowes to get the Samsung filter.  Save your money and try another brand or the Samsung filter.  These are worthless...