Berkey PF-2 Fluoride/Arsenic Replacement Water Filters, 2-Pack

Brand: Berkey
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  • Berkey PF-2 Fluoride/Arsenic Replacement Water Filters, 2-Pack

    The Berkey water filter fluoride reduction elements work by adding the ability to remove the contaminants listed below. When threaded directly onto the Black Berkey purification elements the fluoride reduction element is an effective way to take control of targeted harmful contaminants in your drinking water. These fluoride water filters work as a post filter to the Black Berkey and are compatible with all Berkey water filter systems.

    Effectively reduces the following water contaminants

    • Fluoride
    • Pre-oxidized Arsenic III and Arsenic V
    • MTBE
    • Other heavy metal ions

    Filtering Fluoride From Your Drinking Water Controversy 

    The Berkey fluoride water filter uses a time-tested method that was developed to reduce fluoride in your drinking water. Berkey developed this filter to address the concerns of the many who find the practice of adding fluoride to drinking water questionable or unacceptable. Fluoride has been deliberately added to many municipal water supplies since the 1950's. This common practice is now becoming more controversial, to say the least. New reports and studies about the harmful effects of adding fluoride to drinking water are emerging. The health and hygiene benefits of applying fluoride directly to the surface of teeth are a well known and seldom disputed. The dispute begins with fluoride that has been added to drinking water only comes in contact with the teeth for a very short amount of time and in a very diluted form. After this contact, the fluoride is then swallowed and the human body is subject to the well known ill effects of the fluoride compound for hours after ingestion. Critics claim that in this age of high fluoride toothpaste that is correctly applied directly to the surface of the tooth, the benefits of fluoride in the water supply are negligible and quite possibly unnecessary. Berkey fluoride water filter allows you to make this decision about your health for yourself by reducing the amount of fluoride in your water by >95%. 


    It is recommended that each set of two Berkey PF-2 fluoride water filters should be replaced after 1,000 gallons (3,785 liters). Example: If you had a Big Berkey system (2-gallon capacity) and you refilled the system 2 times per day, you would be using 4 gallons of water per day. Under these conditions, the PF-2 fluoride water filter elements would last 250 days (1000 gal. divided by 4 = 250) or a little over 8 months. Actual replacement period for the PF-2 fluoride filter is dependent on how much water you would use and the presence of other competing contaminants in the source water. High levels of arsenic, fluoride and certain heavy metals may negatively affect the efficiency and capacity of the PF-2 elements.

    Technical Information

    Testing was performed with a flow rate of fewer than 11 liters per minute per cu.ft. of the Berkey filtering medium at 20 - 30 parts per million (ppm) of the ion in the solution liquid. Results of < 1ppm of the fluoride ion in the effluent were typical for the filter media (>95% reduction). Under optimum laboratory conditions, effluent concentrations of less than 50 part per billion (ppb) were readily achieved which equates to a >99.75% reduction. 

    ARSENIC: Arsenic cations and arsenic oxide anions have unique properties that this Berkey filter product effectively targets.

    For maximum removal efficiency, maintain the water being treated between a PH level of 5 and 8. Actual capacity is dependent on the level of contamination of
    arsenic, fluoride and other competing heavy metal ions. Unusually high levels of these contaminants may reduce the capacity and efficiency of the elements. 


    1. Do not subject to freezing temperatures, high heat or boil the fluoride water filter elements.
    2. Under normal circumstances, the PF-2™ canisters reduce water filtering flow rate of most Berkey filtering systems by 15-20%.

    Priming The Berkey Fluoride Filters

    In order to use your Berkey fluoride filter for the first time, you must prime them. The filtering media contained in the element is very dense and contains dust from the manufacturing process. This dust needs to be rinsed from the media in order for the water to run clear and to break the surface tension of the filtering media. Please follow the instructions below in order to get the best results possible from your Berkey water filtering system.

    PF-2 Fluoride filter priming instructions

    Caution: When screwing the element onto the Black Berkey filter do not exceed 8 revolutions or the threaded portion of the filter will protrude too far into the fluoride filter and possibly damage the filter.

    • With the blue caps in place wash the exterior of each PF-2 fluoride element with water and mild dishwashing soap, then rinse.
    • 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

     Place the 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. 

    All Berkey test results can be found at:

    Additional helpful information is offered at the Berkey Knowledge Base:

  • We use preferred shipping carriers, including but not limited to, FedEx, UPS, DHL, and USPS. 

    Typical shipping requires 2-10 days. 


  • We work very hard to ensure that we offer the absolute best prices online.  If you find another online store that offers a lower price than us within six months of your purchase date please let us know and we will refund your original payment for the difference.  We want you to feel confident that you are getting the absolute best price for the product you are ordering.  If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date will refund the difference as well.

    To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors' website within six months from the date of your order and we will process the credit accordingly.

    Our 100% Price Guarantee has some limitations:

    • You must purchase the item from our website before requesting your Price Match Guarantee
    • Promotions such as rebates and buy one, get one free offers are not eligible
    • The item must be in stock on the competitors' website
    • The competitor must be an online store, they may not have a retail location
    • The website cannot be a discounter or auction website (ie; eBay, overstock, etc..)
    • The competitor must be an Authorized Retailer of the product in question
    • The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax



    ONLY unused or unopened boxes may be returned within 30 days from delivery date. Such returns are subject to a 10% re-stocking fee.

    Used or opened boxes are NOT returnable under Berkey’s Dealer policy.

    To initiate your return/ refund, you must first contact to request an RMA (return merchandise authorization) number. The return shipping cost is to be paid by you, the customer.  After receiving your return and inspecting it, Extreme Wellness Supply will issue the refund.


Type: Water Filter

Vendor: Berkey

Berkey PF-2 Fluoride/Arsenic Replacement Water Filters, 2-Pack Reviews

Customer Reviews

Based on 4 reviews
David D.
Big Berky water filters

Thank You very much for the water filters great Price and fast service.


I'm satisfied with the product and service. Many places were out of stock and was glad to find what I was looking for. The water tastes so much better (almost sweet to me) with these filters.

David H.
Berkey PF-2 white filters

Great filters. Perfect finishing touch when used with the black filters. Best tasting water ever.

Berkey rocks

Happy with new filters for our beloved Berkey, everything great. Thanks for wonderful customer support Extreme Wellness Supply!