Berkey Water Purifier Arsenic and Flouride Filters. PF-2 Fluoride and Arsenic Reduction Filters adsorb unwanted elements found in drinking water. Filters forms of fluoride including sodium fluoride, sodium fluorosilicate, fluorosilicic acid (aka hydrofluorosilic acid). Filters forms of arsenic including V and pre-oxidized arsenic III. Also filters other residual heavy metal ions.
Made from safe, non-leaching polypropolene #5 that is BPA-free. Sold in a set of 2. PF-2 Fluoride and Arsenic reduction Filters are designed to be used in conjunction with the Black Berkey Purification Elements only. Attach to the bottom of the Black Berkey Elements and sit in the lower chamber of the Berkey unit. Number of PF-2s in the bottom chamber must match the number of Black Berkey Purification Elements in the top chamber; for example, 4 Black Berkey Purification elements would require 4 PF-2 Filters Set of 2 PF-2. Filters need replacement after 1000 gallons of use. The Berkey PF-2ª Fluoride and Arsenic Reduction Filters are covered under a six month warranty.