We are THE APPROVED seller of Aquatab. Tablets are so small that they easily fit into any pocket, pouch, purse, bag, backpack, drawer, emergency preparedness kit, disaster relief pack and more. Aquatabs are conveniently packaged to retain freshness and start with a 4 to 5 Year Shelf Life. Each Strip of Aquatabs contains 10 individually sealed tablets. Protect you and your family during outdoor activities, natural disasters and emergency situations where boiling water is not an option. Be sure to read instructions before use. Remove one Aquatab tablet from its packaging and insert into 1/5 gallon (0.75 liters) of contaminated water. Mix well for at least 10 minutes, then allow to stand for 30 minutes before drinking. The treated water will then be ready for consumption.