• The Big Berkey® System comes with 4 Black Berkey^® Purification Elements
• The versatile Big Berkey^® system is ideal for small to medium families, and for use during travel, outdoor activities, or unexpected emergencies
• Constructed of highly polished AISI 304 stainless steel
• Storage capacity of about 2.25 gallons (8.5 liters)
• 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, 4 Black Berkey^® Purification Elements, 1 stainless steel lid,1 spigot, rubber gasket to protect the base, 2 wingnuts, 2 washers, and 1 priming button
• Height when in use: 19.25"
• Diameter: 8.5"
• Weight: 8 lbs empty
• For normal everyday use, this system easily serves: 1-4 people
• Fully configured, this system can serve up to 85-170 people a day, during an emergency
• 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

The Berkey® stainless steel chambers are assembled in the USA from US and imported parts. The Black Berkey® Purification Elements are made and assembled in the USA.