- Set of 2 Berkey PF-4 Replacement water filters. Reduces fluoride, arsenic, MTBE, Lead
- For use with gravity filter systems that use ceramic filters
- Will fit on British Berkefeld and Doulton ceramic filters
- Used as a post filter, these screw onto the bottom of your ceramic filters
- Will NOT fit Black Berkey filters.Only fits white ceramic filters.
I wanted these fluoride filters to work, I really did.
After running 15 gallons of city tap water (with an average ppm fluoride content of 0.30 to 0.60) through 2 x Berkey black filters and 2 x PF-2 fluoride filters I sent this sample of "filtered" water to 3M Industries for a fluoride concentration test. The results confirmed that these so-called "fluoride filters" DON''T actually filter out very much fluoride at all, if any.
3M Lab Result: 0.36 ppm of FLUORIDE (remaining in the water filtered through these PF-2 "fluoride" filters).
"The fluoride concentration result for the sample you submitted is listed above. This result was obtained using state-of-the-art equipment for accuracy. The method of testing is the fluoride ion selective electrode." (3M)
So if you just want to KEEP the fluoride in your "fluoride filtered" drinking water while adding some PVC leach-age with a sprinkling of aluminium into your drink, go ahead and blow some $$ on this rubbish.
Alternatively you could go and buy some plastic pipe fittings from the local hardware store, throw in some aluminum shavings and hang those in the "filtered" water chamber of your Berkey for a mere fraction of the cost.
Buy Set of 2 PF-4 Fluoride Replacement Filters for Berkey Ceramic Filters Now
you have to follow instructions and flush those under pressure to clean them up before first time use. Be sure to order a set of 2 (4 filters) when ordering with a new berkey filter. Each of those connects to the top filter which you have 4.Read Best Reviews of Set of 2 PF-4 Fluoride Replacement Filters for Berkey Ceramic Filters Here
First of all, the PF-4 Fluoride filters came without so much as an instruction sheet. I had to remove the blue inserts at both ends of each PF-4 filter and try to figure out what to do to attach them to the ceramic filters. After hooking them up to the ends of the two ceramic filters that were protruding into the bottom Berkey chamber and securing them tightly, I allowed the water in the upper chamber to filter through to the bottom chamber, not once, twice or thrice, but four times. The reason being that I was consistently getting an oily looking, murky, contaminated mess in the bottom chamber. In fact, the unfiltered water in the upper Berkey chamber was crystal clear and drinkable, though fluoridated, as compared to the filtered, yucky looking product that was being produced in the bottom chamber. Thank goodness I had enough common sense to check the content of the bottom chamber each time rather than blindly pouring and gulping down a mouth full of murk. I even did a fifth run the day after the previous day''s disappointments, but to no avail. Nothing drinkable at all! I kept getting filtered murky water, instead of filtered Berkey water. How much patience should one have? In desperation, I decided to detach the two PF-4 Fluoride filters from the ceramic filters, and allowed only the ceramic filters to filter the water. At last! It was then and only then that I finally obtained crystal clear, clean, drinkable water in the bottom chamber. Thus, the Berkey ceramic filters worked perfectly, but not the PF-4''s. I am therefore justifiably returning the malfunctioning PF-4 Fluoride filters for a well-deserved refund.
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