Product review (1 stars): Called Samsung and they were useless. Even said 'others have cut the notches to ...
Supposed to be the replacement for my old filter.  Doesn't fit.  The notches are different so it will not turn to lock.  Called Samsung and they were useless.  Even said 'others have cut the notches to get it to fit, but we don't recommend that'.  Basically was suggesting I do that but also covering themselves at the same time.  Terrible!  They are fully aware that it doesn't fit all models but isn't doing anything about it or offering a solution.