$averPak 2 Pack - Includes 2 Seychelle 38oz ADVANCED Filter Canteens with Canteen Insulator Slings in Black Includes 2 - 38oz ADVANCED Filter Canteens with Canteen Insulator Slings in Black. Each filter produces up to 100 gallons of filtered water or more depending upon the quality of the source water Removes up to 99.99% of chlorine, chemicals and heavy metals; and up to 99.9999% of bacteria and virus Has a screw on/off fill from the top cap for easy filling. 38oz size is light weight and easy to use! Reusable - made of FDA approved low density polyethylene #4 plastic - Will not leach. BPA free and Filter is replaceable! Replaceable filter is attached to cap.