For use with Big Berkey, Travel Berkey, Berkey Light, Royal Berkey, Imperial Berkey, Crown Berkey. Under optimum conditions, effluent concentrations of less than 50 ppb were readily achieved (99.75% reduction).
BB9-2 Black Berkey Water Filter Replacement Elements (4-Pack)
Compatible Water Purifier Models Berkey Travel BT2X2-BB, Berkey Crown CRN8X2-BB, Berkey Go GOBK-KIT, Berkey Big BK4X2-BB, Berkey Light BL4X2-BB, Berkey Royal RB4X2-BB, Berkey Imperial IMP6X2-BB. There are no substitutes for Berkey performance and quality.
