LIFESAVER Family Disaster Pack LIFESAVER filters out bacteria, viruses, cysts, parasites and fungi instantly from water Filters 20,000 liters/5,300 US gallons of water Emergency drinking water - aluminium foil sealed for an extended shelf life of 10 years Fill, Pump Drink Filters down to 15 nanometers FAILSAFE Technology Military Grade Foil Sealed for 15 years Shelf life No Chemicals, UV Light, Solar or Power