• This Royal Berkey® System comes standard with 2 Black Berkey® Purification Elements but can be expanded up to 4 elements
• The versatile Royal Berkey® System is ideal for use at home with medium-sized families, travel, outdoor activities, or during unexpected emergencies
• Constructed of highly polished AISI 304 stainless steel 
• Storage capacity of about 3.25 gallons (12.3 liters)
• Upper chamber nests within lower chamber for transport and stands only 15.25" in height
• Maximum Filters: 4 Black Berkey® Purification Elements (in upper chamber)
• System includes upper and lower stainless steel chamber, 2 Black Berkey® Purification Elements (expandable up to 4), 1 stainless steel lid, 1 spigot, 2 wingnuts, 2 washers, 1 priming button, 2 blocking plugs, 1 rubber gasket to protect the base
• Height when in use: 23"
• Diameter: 9.5"
• Weight: 8 lbs empty
• For normal everyday use, this system easily serves: 2-4 people
• Fully configured, this system can serve up to 100-200 people a day, during an emergency
• Maximum Filtration Flow Rate:
• Configured with 2 Black Berkey® Purification Elements, the Royal Berkey® System can purify up to 4 gallons (15.1 liters) per hour
• Configured with 4 Black Berkey® Purification Elements, the Royal Berkey® System can purify up to 7 gallons ( 26.5 liters) per hour
• Up to 4 PF-2 Berkey PF-2™ Fluoride and Arsenic Elements can be installed in the lower chamber if desired

Flow rate calculated with upper chamber full to top. Flow rate decreases as water level declines.