Product Description Potable Aqua Water Purification Tablets are an essential addition to your outdoor adventure, camping, hiking, and emergency preparedness kit. These compact, travel-friendly water purification tablets are shipped in envelopes without additional outer packaging, making them easy to carry and store. Potable Aqua tablets effectively make questionable water bacteriologically suitable to drink, even in emergency water purification situations, providing a reliable solution when clean water is not readily available. When used as directed, these tablets are effective against Giardia lamblia, ensuring safe hydration in uncertain conditions. With a simple and quick process, the tablets purify water in just 35 minutes. Each bottle contains 50 tablets, enough to treat up to 25 quarts of water. Trusted by outdoor enthusiasts and emergency preparedness experts, Potable Aqua is the go-to name for portable water purification. Use these tablets for travel, disaster preparedness, or outdoor activities to ensure access to safe drinking water when you need it most. From the Manufacturer About 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 more than 50 years. Pharmacal currently supplies the U.S. Military with Potable Aqua for its emergency drinking water needs. Potable Aqua is also widely used by campers, backpackers, and various other militaries around the world. With the addition of the Potable Aqua Traveler and Chlorine Dioxide Water Purification Tablets, Potable Aqua continues to meet the ever-changing needs of today's outdoor enthusiast.