Potable Aqua Germicidal Water Purifier Tablets are a must-have for outdoor adventurers. These tablets effectively treat questionable water, making it safe to drink even in emergency situations. To use, simply add 2 tablets to 1 quart of water, loosely cap the container to allow for a small amount of leakage, and wait 5 minutes before shaking the container and tightening the cap. After 30 minutes, the water is disinfected and ready for safe consumption. Potable Aqua is trusted by the military and is widely used by campers, backpackers, and emergency organizations worldwide. With their Traveler and Chlorine Dioxide Water Purification Tablets, Potable Aqua continues to meet the needs of today's outdoor enthusiasts. Ensure your water safety and emergency preparedness with Potable Aqua Water Purification Tablets. Only use when drinking water is suspected or known to be substandard.