The Absolute Best Gravity Water Filter You Can Get
Black Berkey purification elements are the leader in gravity-fed water purification. The black Berkey purification element formulation has been tested by State and EPA accredited laboratories to exceed NSF/ANSI Standard 53. Each Black Berkey element is designed to purify approximately 3,000 gallons of water before needing replacement; 2 elements in a Berkey system will purify approximately 6,000 gallons of water before replacement is recommended. They install in the upper chamber of any Berkey filter system and can be used to upgrade most other gravity-fed water filter systems.
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