The Big Berkey® system is constructed of highly polished 304 stainless steel. The system comes complete with two purification elements and utilises the latest technological advances. This system has a storage capacity of about 2.25 gallons (8.5 liters) and when in use it stands 19.25” in height with a diameter of 8.5”. The upper chamber nests within the lower chamber for transport and stands only 13” in height. Flow rate calculated with upper chamber full to top. Flow rate decreases as water level declines.Up to 4  PF-2 Fluoride and Arsenic Filters may be installed in the lower chamber of this system if desired

Big Berkey® System with 4 Black Berkey Elements ($524.00)

Constructed of: highly polished AISI 304 stainless steel
Storage capacity: 2.25 gallons (8.5 liters)
Maximum Fliters: 4 Black Berkey Elements (in upper chamber)
Kit includes: Upper chamber nests within the lower chamber for transport and stands only 13" in height
Maximum Filters: 4 Black Berkey Purification Elements (in upper chamber) 
System includes upper and lower stainless steel chambers, 2 Black Berkey Purification Elements (expandable up to 4), 1 stainless steel lid,1 spigot, rubber gasket to protect the base, 2 wingnuts, 2 washers, 1 priming button, and 2 blocking plugs

• 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