The Imperial Berkey is our second largest unit. It is perfect for small to medium sized groups like churches and hospitals.
Capacity and Size
It holds 4.5 gallons of purified water. It is 10″ in diameter and stands 25.75″ tall. With the upper chamber nestled in the lower chamber (for travel), it is 17″ high.
With the 2 Black Berkey filter elements installed, it will purify up to 3.5 gallons per hour*. Expand the Imperial Berkey with a total of 6 Black Berkeys and it will purify up to 13.5 gallons per hour*!
*The flow rate was calculated with the upper chamber full of water. As the water level decreases, the flow rate will also decrease.