EcoAqua EFF- WF1CB Replacement for Electrolux, Sears, Frigidaire WF1CB, WFCB, RG100, NGRG2000, Kenmore 9910 Refrigerator Water Filter, 2 Pack CERTIFIED AND TESTED : Tested and certified by NSF International against NSF/ANSI Standard 42 for the absorption of chlorine taste and odor and particulate. EcoAqua guarantees healthier cleaner water and offer you peace of mind. Manufactured by the Ecolife technologies. WORLD-RENOWNED BRAND : EcoAqua, a household water filter brand, provides fresh tasting ice and water to millions of families in the USA. The EcoAqua brand guarantees the quality of the product. HIGHEST-GRADE MATERIAL : All natural activated coconut shell carbon removes chlorine, odor, contaminants and particulates, serves you spring like water, full of natural minerals. QUALITY ASSURANCE : All filters from EcoAqua ensure reliable and efficient filtration performance for the entire duration of the cartridge. COMPARABLE PART NUMBERS : Frigidaire WFCB, WF1CB, WSF-1, NGRG-2000, RF-100, RG-100, 218710901, 218710902, 218717805, 218732306, 218907800, 240389101, 240389102, 240394501.