Make your water drinkable with the most portable water purifier. Two tablets to every 1 quart of questionable water to insure safe drinking. Just one bottle of Potable Aqua purifying tablets will purify up to six gallons of water. These little iodine tablets make your water safe from harmful bacteria and viruses. Simply drop two tablets in a quart of water and within 30 minutes, microorganisms will have been neutralized. Each bottle contains 50 tablets. Three-year shelf life.

Emergency Drinking Water Germicidal Tablets -- Makes questionable water bacteriologically suitable to drink.

Treats up to 25 quarts.

Proven effective against Giardia lamblia.