Black Berkey™ Purification Elements are more powerful than any other gravity filter element currently available. The Elements have a unique purification capability that is due to their unique structure. The micro- pores within the Black Berkey® Elements are so small that viruses and pathogenic bacteria are simply not able to pass through them.

Black Berkey™ Purification Elements are more powerful than any other gravity filter element currently available. The Elements have a unique purification capability that is due to their unique structure. The micro- pores within the Black Berkey® Elements are so small that viruses and pathogenic bacteria are simply not able to pass through them.

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