Quick take
Use Samsung HAF-QIN / DA97-17376B or a compatible cartridge explicitly documented for HAF-QIN and the RF28T5001 series.
Correct filter family
Samsung’s U.S. HAF-QIN page lists RF28T5001** among compatible models.
Finish suffixes
Samsung uses suffixes for finish and market. Match the full model code on the refrigerator when ordering.
OEM baseline
HAF-QIN is the manufacturer-supported replacement family and is the benchmark for fit and stated reduction claims.
Compatible alternatives
Aftermarket cartridges should clearly name HAF-QIN or DA97-17376B and publish their own certification scope.