The Aquamira Frontier Max is an amazing tool for backcountry adventures. With multiple filter types and ways to filter, it&';s the ultimate way to enjoy water on the go.Features : Backcountry Filter Lightweight a compact 1 oz. (71 g) packable protection Connects to reservoirs, gravity, and DIY systems via quick connects Fits all Aquamira pressurized reservoirs, for pressure-assisted filtration on the trail Certified lead free (NSF/ANSI-372) BPA free, chemical free, and iodine free Filter made in the USA