New! Ultralight tablets provide fresh drinking water anywhere you go. The only disinfection system effective against viruses, bacteria, Giardia and cryptosporidium. Fresh tasting water-no unpleasant taste. Easy-to-use tablets. Meets EPA purification guidelines. Purification method: Chlorine Dioxide tablets. Output: 1 tablet treats 1 qt. of water. Capacity: 30 tablets.