Since 1928, Katadyn® produced portable water systems for the military, health orgs. and outdoor enthusiasts worldwide. Ideal for hunting, fishing, hiking, canoeing, biking and international travel. Makes any fresh water drinkable. Just dip your bottle in a creek, lake, etc. and drink. Purified water assured, without pumps or hoses.

Specifications:

-Advanced VirStat® technology kills over 99.9999% of waterborne bacteria and over 99.99% of waterborne viruses
-Removes over 99.9% of cysts and other protozoa 120 refills (26 gallons) per replaceable cartridge
-Bite valve leak-proof seal
-11 x 3", 21 ounces capacity, weighs about 7 ounces
-Handy carry loop.