50 tablets per package, expiration date 02/2018
Kills bacteria, fungi and amoeba which can cause dangerous stomach upsets, diarrhea etc
One tablet purifies a whole liter of dirty stream/river/lake/well/pond water in just 30 minutes (!) May also be used to clean fruits and vegetables or disinfect wounds in emergencies
Based on Sodium Dichloroisocyanurate and suitable for people with iodine allergies.
Full English instructions and information (see in photos)