GE® MWF REFRIGERATOR WATER FILTER 3-PACKFEATURES State of CA Certified Yes NSF ANSI 42 Yes Ibuprofen 94. 1% NSF 42 Yes Mercury Reduction 93. 2% @ 6. 5 pH and 93. 2% @ 8. 5 pH Atrazine (Herbicide) Reduction 94. 5% Tetrachloroethylene 96. 7% Filter Life 6 Months Chlorine Taste and Odor Reduction 97. 5% Benzene Reduction 96. 7% P Dichlorobenzene Reduction 99. 8% Lead Reduction 99. 3% @ 6. 5 pH and 99. 3% @ 8. 5 pH Pharmaceutical Filtration Claims tested verified by independen Yes Turbidity