Product review (1 stars): Watchout, FIlter Mount Been Changed.
Design defect!  Purchased them in the past without any problems.  Saw a great deal on a package of three.  Now they do not fit without alterations.  When I called Samsung, they stated there is no known issue on file and referred me to their parts department.  Spoke with them and they verified it was the right filter for my refrigerator.  As I explained to them the problem they said they had not heard of it and they are just a third party selling parts for Samsung.  Any defect in the product engineering has to be taken up with Samsung.  So there you have it, right filter that should work.  As others have said, somewhere along the line, someone changed the designed.

I was finally able to mount it by removing the first tooth as the original filter has two teeth and this one has three.  Tried the corner shaving, but that did not work.  It was the front tooth that did it.  I have no choice at this point but to keep the filters and make the modifications as I need to change the filter, a dangerous proposition in cutting.  Tried 3rd party filters before, didn't care for the amount of carbon pumping out during the first several days of use and the drips.  As for these filters, sooner or later someone is going to badly cut themselves and the litigation will begin.