The Solution to Water Pollution: The flexible plastic bottle is FDA food grade approved and comes with a screw on cap with an integral filter that combines GAC and a revolutionary metal absorbing medium. Together, these media insure removal of chlorine, taste, odor, pesticides, lead and other metals, as well as pathogenic cysts and coliform bacteria, should they be present in the water. The bottle will hold 16 oz. of water and will provide 200 gallons of usage before the proprietary filter must be replaced. Perfect for the active lifestyle. Use at the gym or during recreation, at the office or school, when traveling or camping, or during emergencies. Anytime or anywhere clean water is needed.