Berkey BB9-2 Replacement Black Purification Elements, Set of 2

Contaminants Removed Over 200 contaminants are removed including: Viruses (99.999%) Pathogenic bacteria (99.9999%) Chloramine (below lab detectable limit) Trihalomethanes (99.8%) Pharmaceuticals (99.9%) Most heavy metals Product Dimensions 2.25 " x 2.25 " x 9.75 " Composition Black Berkey Filters are made of a carbon composite containing high-grade coconut shell carbon combined with a proprietary blend of 5 other types of media. Certifications The Black Berkey Filter formulation has been tested by State and EPA accredited laboratories to exceed NSF/ANSI Standard 531 Lifespan 3,000 gallons per filter. (6,000 gallons per set of 2)