1 tablet treats 20 litres of water. Use this simple, lightweight solution to treat water on short hiking or camping trips. For larger groups or extended trips, a mechanical filter may be preferable. Purifying tabs are also excellent for travelling or for adding to emergency preparedness kits. Tablets have a 5 year shelf life. Contains 50 tablets, each tablet treats 20L of water. Solution is iodine-free, contains sodium dichloroisocyanurate. Effective against some protozoa, such as Giardia. Not effective against certain stages of cryptosporidium. Manufactured under pharmaceutical guidelines and regulations. NSF certified. Add one tablet to 20 litres of water. Dissolve tab and shake bottle. Wait 30 minutes before drinking water. To treat uncut fruits and vegetables, add 5 tabs to 10 litres of water. Soak fruits and vegetables for 10 minutes.
