Seychelle 38oz Water Bottle Canteen with Advanced Filter - Removes 99.99% of Heavy Metals & Chemicals and 99.9999% of Bacteria and Viruses Perfect for when drinking water quality is unknown. The military style canteen fits into most standard canteen belt pouches Filter produces up to 100 GALLONS of filtered water or more depending upon the quality of the source water Removes up to 99.99 percent of chlorine, chemicals and heavy metals; and up to 99.9999 percent of bacteria and viruses. Removes up to 90 percent of Fluoride. REMOVES CHROMIUM 6 Made of FDA approved low density polyethylene number 4 plastic. BPAFREE Easy screw on cap allows for easy filling, and the replaceable ADVANCED water filter is housed within the cap. DO NOT USE WITH SALT WATER