1 strip gives you 10 tablets good for 20-25Litres of water each.
OASIS Water Purification Tablets are great to have for camping, traveling and for home emergencies. These are NATO approved and used. The tablets are designed to give you the minimum of 5 ppm of available chlorine when used properly. The following causative water borne organisms among others are killed by Oasis Water Purification Tablets : Escherichia coli, Escherichia coli, Giardia, Salmonella Typhimurium, Shigella Sonnei, Streptococcus Faecali, and Vibro Cholerae .