Berkey PF-4 Fluoride filters (2pcs)

-Fluoride

-Arsenic

-Lead

-Heavy Metal Ions

-MTBE (Methyl-tertiary-butyl-ether)

-Trihalomethanes (THM)

-DBCP (Dibromo-chloro-propane)

-Herbicides and Pesticides

-Made from safe, non-leaching Polypropolene #5 that is BPA-free

-Sold in a set of 4

-PF-4 Fluoride and Arsenic Reduction Filters are designed to be used in conjunction with the White Super Sterasyl Ceramic Filter Elements only

-Attach to the bottom of the White Super Sterasyl Ceramic Filter Elements and sit in the lower chamber of the Berkey unit

-Number of PF-4s in the bottom chamber must match the number of White Super Sterasyl Ceramic Filter Elements in the top chamber; for example, 4 White Super Sterasyl Ceramic Filter Elements would require 4 PF-4 Filters

-PF-4 Filters need replacement after 1000 gallons or every six months, whichever comes first