Constructed of a shatter resistant, high impact strength non BPA copolyester; the system comes complete with two purification elements, a base and utilizes the latest technological advances. This system has a storage capacity of about 2.75 gallons and when in use it stands 26.5 in height with a diameter of 9. The system stands 21 when used without the base (included). Configured with two Black Berkey® purification elements the system can purify over 4 Gallons per hour.The Berkey LightTM system is designed for use during travel, outdoor activities and during unexpected emergencies. This powerful system purifies both treated water and untreated raw water from such sources as remote lakes, streams, stagnant ponds and water supplies in foreign countries, where regulations may be substandard at best. Perfect for outdoor activities and a must in hostile environments where electricity, water pressure or treated water may not be available.