Product review (1 stars): I purchased every filter listed as a compatible replacement for ...
I purchased every filter listed  as a compatible replacement for the Samsung DA29-00020B and none worked.  The center hole is now much smaller and several had 2 'O' rings instead of one as is on my original.  I even purchased the 'genuine' Samsung replacement and it didn't work.  The only compatible replacement that worked was a Waterfall WFC1401 which is no longer available through Amazon.  I guess I will need to go to the big box store and see what they have.  Very disappointing!