Berkey Gravity Water Filter Replacement, 2 Black Carbon Filters & 2 White Fluori
Compatible Water Purifier Models Berkey Big BK4X2-BB, Berkey Crown CRN8X2-BB, Berkey Imperial IMP6X2-BB, Berkey Light BL4X2-BB, Berkey Royal RB4X2-BB, Berkey Travel BT2X2-BB. Why Gunneran filter flow is fast than Berkey original filter?.