| Reverse osmosis & faucet filters typically do NOT filter out the following 100 contaminants: (NOTE: As companies work to improve their product and achieve certification with NSF for each contaminant, this list may need updating. We are not responsible for old information.) 1,1,1-Trichloropropanone 1,1-Dichloropropanone 1,2,3-Trichloropropane 1,2-Diphenylhydrazine 1,3-Dichlorobenzene 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chloroethyl vinyl ether 2-Chloronaphthalene 2-Chlorophenol 2-Nitrophenol 3,3-Dichlorobenzidine 4,4-DDD 4,4-Dibromo-1,1-biphenyl 4,6-Dinitro-2-methyl phenol 4-Bromophenyl phenyl ether 4-Chloro-3-methyl phenol 4-Chlorophenyl phenyl ether 4-Nitrophenol Acenaphthene Acenaphthylene Aldicarb (Temik) Aldrin alpha-BHC alpha-Endosulfan Anthracene Benzidine Benzo(a)anthracene Benzo(a)pyrene Benzo(b)fluoranthene Benzo(ghi)perylene Benzo(k)fluoroanthene beta-BHC beta-Endosulfan Bis(2-chloroethoxy)methane Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Bromochloroacetonitrile Bromodichloromethane Bromoform Butyl benzyl phthalate Carbaryl Chloral Hydrate Chlordane Chlorodibromomethane Chloroform Chlorpyrifos Chrysene cis-1,3-Dichloropropene delta-BHC Dibenzo(a,h)anthracene Dibromoacetonitrile Dichloroacetonitrile Dieldrin Diethyl phthalate Dimethyl phthalate Di-n-butyl phthalate Di-n-octyl phthalate Endosulfan Sulfate Endrin Aldehyde Fluoranthene Fluorene Guthion Hexachlorobenzene Hexachloroethane Hydrocarbons (Gasoline, Kerosene, Diesel Fuel) Isophorone Malathion Mercury Microcystin LR MTBE Mutagen X (MX or 3-chloro-4-dichloromethyl-5-hydroxy-2[5H]-furanone) Naphthalene Nitrobenzene N-Nitrosodi-n-propylamine N-Nitrosodiphenylamine Parathion PCB-1016 PCB-1221 PCB-1232 PCB-1242 PCB-1248 PCB-1254 PCB-1260 Phenanthrene Phenol Pyrene Strychnine TCDD (2,3,7,8-Tetrachlorodibenzo-para-dioxin) TCDF (2,3,7,8-Tetrachlorodibenzofuran) Toxaphene trans-1,3-Dichloropropene Trichloroacetonitrile Vinyl chloride VOCs |