Clatterans Replacement Water Filter for Black Berkey BB9-2 & Fluoride Filters PF-2 Set of 4

Uses state-of-the-art technology to help remove harmful substances, such as Bacteria, Chlorine, Chloramines, Heavy Metals, Pharmaceuticals, fluoride, Arsenic, and more.; The real filter lifespan depends on water quality and level of contaminants, but for best filtration results, please replace the black filter every 8,000 gallons for pair and the white filters every 1,000 gallons for pair to maximize contaminant reduction.; Replacement for BB9-2 Fluoride/Arsenic Replacement Filter and fit the water filter system working in pair with PF-2 filter. Includes 2 priming buttons.; Replacement for PF-2 Fluoride/Arsenic Replacement Filter and fit the water filter system working in pair with BB9-2 filter. Includes 2 priming buttons.; Easy to install and no tools required.; Interchangeable with Travel, Big, Royal, Imperial and Crown Series.