Microfilter DA29-000020B is qualitatively different from other brands or imitations that show a cheaper price. It is produced by the same manufacturer as the genuine Samsung product. DA29-00020B which was made from Microfiber Co., Ltd was the same quality as genuine Samsung filters Reduces Chlorine and Improves Water Odor and Taste: Tested and certified by NSF International against NSF/ANSI Standard 42 Reduces Lead, Cyst, Benzene, Carbofuran and Endrin: Tested and certified by NSF/ANSI 53.401 Compatible with Samsung DA29-00020B, DA29-00020A, DA97-08006A-1, HAF-CIN/EXP, 46-9101 For optimal performance, it is recommended to replace the filter every 6 months or every 300 gallons, whichever comes first. Can be easily replaced