Flow rate calculated with upper chamber full to top.
Black Berkey Purification Elements are powerful water purifiers, they are not simple filters. They are powerful enough to purify both contaminated municipal tap water as well as untreated, questionable water from harsh sources such as lakes, rivers, streams and ponds.
Berkey systems equipped with Black Berkey Purification Elements remove greater than 99.999% of viruses and greater than 99.9999% of pathogenic bacteria, while also removing or dramatically reducing protozoa, trihalomethanes, inorganic minerals, heavy metals, pharmaceuticals, pesticides, VOCs, petroleum products, perfluorinated chemicals, rust, silt, sediment and radiologicals.
Two Black Berkey Purification Elements in a Berkey system will purify approximately 6,000 gallons of water before replacement is recommended.
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