The Aquamira Water Bottle & Filter is an effective, and lightweight water filtration system for the outdoors. The bottle is a 25 fl oz. sport bottle with capsule water filter technology. Removes more than 99.9% of Giardia and Cryptosporidium while helping improve water taste and eliminate odors. Treats 100 gallons of water, or 640 refills, while reducing organic contaminants and waterborne chemicals.