Product review (1 stars): Need exact-o knife to make it fit
Several suggestions from this thread.  I had to cut mine on 4 places to make it fit: a 45 degree cut on the left side, a 45 degree on the right side, a vertical on the right side, and a horizontal on the right side.  There are two of these on the filter, so a total of 8 cuts.  Just need to take a fingernail thickness off with each cut.
$40 filters subjected to a little American ingenuity.