PF-2 Big Berkey Fluoride Filters 2-Pack

Berkey Fluoride Reduction Filters

Product Code: PF-2

This popular item is currently on a PRE-ORDER status.  The manufacturer has had limited production.  

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The PF-2™ Fluoride Reduction filters are designed for use in conjunction with Black Berkey water purification filters to adsorb the following unwanted elements found in drinking water.
  • Fluoride
  • Arsenic V and pre-oxidized Arsenic III
  • Other residual heavy metal ions
The Fluoride filters easily install without tools as they attach to the threaded ends at the bottom of  the Black Berkey filters
The media used in the PF-2 fluoride filter elements contains high-grade inert, activated alumina (Al2O3), which currently is the most efficient media available for extracting fluoride from water.
Under normal conditions it is recommended that each set of two PF-2™ filters be replaced after 1,000 gallons (3,785 liters).  If the Berkey system is refilled about one time per day, the PF-2’s should be replaced after 10 months, if the system is refilled about twice per day, the PF-2’s should be replaced about every five months). Actual capacity is dependent on the presence of other competing contaminants in the source water. High levels of fluoride, arsenic and heavy metals may reduce the capacity and efficiency of the elements.
Priming The Berkey Fluoride Filters
Priming the Berkey Fluoride water filter before use is necessary in order for the elements to perform properly. The filter medium inside the fluoride reducing element contains some residual manufacturing dust that may make the final water product cloudy or have a bitter taste. This situation is easily avoided by simply flushing the fluoride filter prior to the first use. Follow the instructions below to assure that your Berkey water filter system performs to its fullest potential.
PF-2 Fluoride filter priming instructions
Caution: Filters must be primed prior to use. Do not install before reading installation procedures – do not screw the PF-2 elements on more than eight revolutions or the core of the filter could be damaged.
  • With the blue caps in place wash the exterior of each PF-2 fluoride element with water and a mild dish washing soap.
  • With clean hands, remove both blue caps from each end of both filter elements.
  • Place the rubber priming button (tan colored) onto one end of a PF-2 and align the hole of the filter with the hole of the rubber washer.
  • Press the priming button up against the sink faucet so that the priming button creates a seal between the faucet and the PF-2 element.
  • While holding the priming button against the faucet, turn on the cold water slowly, allowing water to fill the cavity of the filter and discharge from the opposite end. Allow water to flow for at least 30 seconds or until water runs clear whichever is longer
  • Hint: place thumb on top of the faucet to apply pressure, this creates a better seal.
  • Turn the Pf-2 filter over and prime the opposite end (reversing the flow of water) repeating steps 3 thru 5 until water runs clear from both directions.
  • When you think the filters are flushed long enough, run some of the water that is being flushed through the filter into a clear glass and hold it up to the light to see if all of the cloudiness is gone from the water, if not continue priming until water is clear.
  •  This filter is now primed and ready to install.
Prime each of the PF-2 elements as described above.

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