Berkey Authentic Black Berkey Elements (Pack of 4)- Berkey Replacement Water Filters For Under Sink And Countertop Water Filter System Fits To

Material: Lead External Testing Certification: NSF Brand: Berkey FILTERS TYPICAL CONTAMINANTS THAT COULD BE PRESENT IN TAP WATER AND RAW, FRESHWATER SOURCES SUCH AS LAKES, RIVERS AND PONDS- Choose only Black Berkey Elements. There are no substitutes for Berkey performance and quality. ECONOMICAL, LONG-LASTING- A pair of Black Berkey Elements lasts for up to 6,000 gallons before replacement is recommended, depending on the quality of influent water. Each additional pair of Black Berkey Elements (sold separately) adds an additional 6,000 gallons of contaminant reduction to your system before replacement is recommended. Black Berkey Elements average just 2 cents per gallon of water. Elements not for use with saltwater sources or softened water. INDEPENDENT TESTING- Berkey Water Systems has used several independent third-party labs to test a broad range of typical contaminants found in freshwater sources including tap water, and has conducted Extreme Testing for lead and PFCs in order to show the effectiveness of Black Berkey Elements.