A convenient way to safe portable drinking water- just fill and hang. Ideal for families, groups and base camps. Removes bacteria, Giardia and Cryptosporidium to EPA standards. Uses cleanable Hiker Pro cartridge. 4 ft. output hose with on/off valve. Flow Rate: 16 oz/min. Bag holds 2.6 gallons. Cartridge capacity: up to 200 gallons. Weight: 13 oz.