Product review (2 stars): Doesn't fit without modifications
Like others in the comments, the version sent to me this time (and I have ordered the same product every year for multiple years without issue) now has 3 teeth and you have to shave off the far left tooth to get the filter to fit. For the cost of these things I shouldn't have to modify them.  My fridge is Samsung Model RF266AERS and requires the DA29-00003G but with two teeth - the model that was available via this source last year.