Product review (5 stars): Confusing...
My first filter out of my brand new refrigerator had very clear wording that read DA-29-00020A.  After a bunch of research I couldn't track it down...Even Samsung told me it didn't exist in the part number world.  I read a few reviews and found out other people were having the same issue.  DA-29-00020B is the replacement for DA-29-00020A.