Aquamira water treatment drops are a safe and easy way to treat drinking water when hiking or traveling. Aquamira uses stabilized chlorine dioxide, a more effective germacide than iodine and is free of iodine's unpleasant taste. The 1 oz. kit is compact enough to fit in a shirt pocket and treats up to 30 gallons. The 2 oz. kit treats up to 60 gallons.