|The 27 oz. Sport Bottle is strong and durable lasting for many years with repeated use. The filter will treat up to 80 gallons of drinking water, approximately 3 months of use under normal conditions. The carbon composite filter removes 90% of the chlorine found in most tap water, eliminating bad taste and odors. It also aids in the removal of significant proportions of heavy metals, including Lead, Mercury, and Copper at a flow rate of 10ml/sec. The Sport Bottle works great in standard bicycle racks and car holders. Simply fill the bottle with water and drink, the bottle will filter the water as you drink! There is no sport bottle filter available to the consumer that out-performs this filter.