Potable Aqua Germicidal Tablets- 50 tablets per bottle. Tablets are intended for emergency disinfection of drinking water. When used as directed, they make most water bacteriologically suitable for drinking. Ideal for emergencies, travel, hiking, camping and disasters, where your water quality may be questionable.
** Iodine based compound (No chlorine)
**Add 2 Tablets to 1 quart/liter. Wait 30 minutes before drinking.
**Proven effective against Giardia lamblia when used as directed.