Aquacera CeraMetix 7" Imperial Ceramic/Fluoride Filter For Gravity Filters 7 Imperial1200 Gallons Pathogenic bacteria&gt;99.9999% Cholera, Typhoid, Salmonella, E. Coli, Fecal Coliform (ALcontrol Laboratories) Cysts100% Cryptosporidium Parvum, Giardia Lamblia (ALcontrol Laboratories) Sediment100% absolute to 0.5 micron (IBR Laboratories) Chloramines &gt;99% ANSI/NSF Standard 42 (Pace Analytical) Chlorine &gt;99% ANSI/NSF Standard 42 (Pace Analytical) Fluoride &gt;97% All typesFluorosilicic acid/hydrofluorosilicate, sodium fluorosilicate, and sodium fluoride (Envirotek) Lead &gt;99% ANSI/NSF Standard 53 (Envirotek) VOCs &gt;98% ANSI/NSF Standard 53 (Envirotek) THMs &gt;98% Reduction (Envirotek) MetalsAluminum, Iron, Mercury, Nickel & Zinc&gt;98% ANSI/NSF Standard 53 (Envirotek) Glyphosate&gt;99.9% (Envirotek) Pharmaceutical Compounds &gt;95% ANSI/NSF Standard 401 (Envirotek) Acetaminophen, Progesterone, Ibuprofen, Naproxen Sodium Herbicides&gt;99% Nitrates&gt;92%