Waterdrop Refrigerator Water Filter, Compatible with WF1CB, WFCB, RG100, NGRG2000, WF284, 9910, 469906, 469910, Pack of 3 Waterdrop is Committed to Improving Water Filtration Technology and Offering Clean Water. NSF CERTIFIED: Tested and certified by NSF International against NSF Standard 42 for chlorine, bad taste and odor reduction. QUALITY PERFORMANCE: Premium coconut carbon block filter is certified to improve taste and quality of water. Delicate design ensures it perfectly fits the original without water leakage. FILTER LIFE: Our high-quality refrigerator water filter provides up to 6 months or 400 gallons of clean and fresh water. REPLACEMENT MODEL: WF1CB, WFCB, RF100, RG100, NGRG2000, 9910, 469910, 46-9910, RWF1030, MPF16135, RWF2300A, DWF-23, R-9910, BCF84, WSF-2, BLZ-14222, WF1CB, BRISTI LP-1500P, NJW-15, WF1CB, WFCB, 9913, 240389101, 9906, 9910, 240389102, 218710901, 218904602, 5303917752, 9906P, 240389101, 240394501, 90102, 9010P, 5303917937, 5303917836, 240389910, 218710902. 100% SATISFACTION GUARANTEED: We care about you. If you have any issue about the product, please let us know. We have a quite professional customer service team and we will take care of it right now.