The PF-2 reduction elements
are designed for use in conjunction with Black Berkey® water purification
elements to adsorb the following unwanted elements found in drinking water.
Arsenic V and pre oxidized Arsenic III
Other residual heavy metal ions
for fluoride was based on 20-30ppm of the ion in the influent aqueous solution
at a flow rate of no more than 3 gpm per cubic foot of media. Results of <
1ppm of the fluoride ion in the effluent were typical for the media (>95%
reduction). Under optimum conditions, effluent concentrations of less than 50
ppb were readily achieved (>99.75% reduction).
ARSENIC: This product
uniquely targets the entire family of arsenic oxide anions as well as the arsenic
Under normal conditions it is recommended that each set of two PF-2 elements
be replaced after 1,000 gallons (The Berkey Light is 2.5 gallons therefore
the PF-2 filters should be replaced after 400 refills. If the system is refilled
about one time per day, the PF-2s should be replaced annually, if the
system is refilled about twice per day, the PF-2s should be replaced about
every six months).
For more info read the product Manual
not available in California