Berkey Light BL4X4-BB Water Filtration System with 4 Black Filter Elements Berkey Light System includes; 4 black filters, BPA-free canisters & base, fabric lid, spigot and 2 hole plugs. Purifies up to 4 gallons per hour with a holding capacity of 2.75 gallons. The Berkey Light system can provide enough water for groups of up to 10 to 20 people Filter Life: Up to 12,000 gallons for the 4 included black filter elements (3,000 gallons per filter element) Made from lightweight BPA-free poly material which is extremely durable Light and durable, the see-through container makes it easier to determine the amount of water in the upper container without the need to have the water-view spigot