• Premium Fluoride water filter element compatible with all Berkey water purification systems.
• Compared to the original part PF-2.
• Filter is made with fluoride particles. It is designed to work with black elements BB9 in the water system to adsorb fluoride, arsenic and pre-oxidized arsenic and other residual typical heavy metal ions.
• Dimension: 6.25" x 2.5". 2 elements included.
• Recommend to replace each pair of fluoride water filter after 1,000 gallons of use, under normal conditions.