CeraMetix Filter for Aquacera Countertop Fluoride Filters Fits Aquacera and doulton countertop water filters Removes Pathogenic bacteriaCholera, Typhoid, Salmonella, E. Coli, Fecal Coliform&gt;99.9999% (ALcontrol Laboratories) CystsCryptosporidium Parvum, Giardia Lamblia100% (ALcontrol Laboratories) - Chloramines&gt;99% ANSI Standard 42Capacity 600 gallons Fluoride 85% Reduction (SnowMass Water & Sanitation District Study) Lead&gt;99% ANSI Standard 53Capacity 500 gallons (Independent laboratory tests  NSF/ANSI Std 42 & 53 Chemical Reduction Tests)