The Most Trusted Name in Water Purification HISTORY OF POTABLE AQUA Potable Aqua iodine water disinfection tablets were developed by Harvard University in conjunction with the U.S. Army in the 1940s, and have been used by the military for emergency drinking water disinfection for over 50 years. Pharmacal currently supplies the U.S. Military with Potable Aqua for its emergency drinking water needs. Recommended for emergency treatment of water, it makes water bacteriologically suitable to drink. Potable Aqua is widely used by campers, backpackers and various militaries around the world. With the addition of the Potable Aqua Traveller and Chlorine Dioxide Water Purification Tablets, we continue to meet the ever-changing needs of today's outdoor enthusiast. Potable Aqua Drinking Water Germicidial Tablets - 50 Count $5.39 Potable Aqua Drinking Water Germicidal Tablets with PA Plus - 50 Count $7.99 Potable Aqua Chlorine Dioxide Water Purification Tablets - 20 Count $9.95 Potable Aqua Chlorine Dioxide Water Purification Tablets - 30 Count $12.95 Need more information? Please feel free to contact us at 1-800-592-6940 - Ask for Extension 547 or Internet Sales.