-Set of 2 Black Berkey Purification Elements
-Maximum Filtration Flow Rate:
-Configured with two Black Berkey Purification Elements, the Big Berkey system can produce up to 3.5 gallons (13.3 liters) per hour
-Configured with four Black Berkey Purification Elements, the Big Berkey system can produce up to 7.0 gallons (26.5 liters) per hour
-Up to 4 PF-2 Fluoride and Arsenic Filters may be installed in the lower chamber of this system if desired