The lightweight, compact and easily transportable Go Berkey Kit is designed for use while on the go. Constructed of highly polished AISI 304 stainless steel. Storage capacity of about 1 quart (.95 liters). Upper chamber nests within lower chamber for transport and stands only 10" height. Holds 1 Black Berkey Element (upper chamber). Kit includes: upper and lower stainless steel chambers, 1 Black Berkey Element, 1 wingnut, 1 washer, 1 priming button, 1 stainless steel lid, 1 Sport Berkey Bottle (22 oz), vinyl carrying case and Black Berkey Primer. Serves 1 or 2 people. Height when in use: 14". Diameter: 4". Weight: 2.4 lb when empty. Berkey stainless steel chambers are assembled in the USA from US and imported parts. The Black Berkey Elements, the Black Berkey Primer and the Sport Berkey bottles are made and assembled in the USA.. Note: Not available for sale to residents of California and Iowa. Maximum Filtration Flow Rate: Configured with 1 Black Berkey Element, the Go Berkey Kit can produce up to one gallon (3.8 liters) of filtered drinking water per hour. Not compatible with Berkey PF-2 Fluoride and Arsenic Reduction Elements. Flow rate calculated with upper chamber full to top. Flow rate decreases as water level declines.. The replacement element for the stainless steel filter is the Black Berkey. Comes in a set of two.