The Big Berkey is our most popular model of water purifier. It is for the average size family of 2 to 4 people.
It stands 19.25″ tall, is 8.5″ in diameter, and holds 2.25 gallons of purified water. It generally comes equipped with 2 Black Berkey filter elements and will filter up to 3.5 gallons* per hour. It can easily be expanded to hold 4 filter elements to increase the flow rate to almost 7 gallons per hour.