Let gravity do the work when you need clean drinking water. With the Katadyn Gravity BeFree 3.0L microfilter, you can drink directly from the reservoir or easily fill a bottle or another reservoir. Features 0.1 micron microfilter is tested to protect against harmful organisms; it removes 99.99% of protozoa and 99.9999% of bacteria to EPA standards Compared to the standard BeFree 3L filter, this filter includes a convenient output hose that lets you quickly fill water bottles and hydration systems Output hose has quick-connect, hydration-pack adapters for hands-free filling of hydration bladders Quick-release cap with auto shutoff for easy filling without hoses and fast output hose attachment Easily hang the durable and collapsible 3-liter HydraPak reservoir with the integrated bail handle and carry loop/hang strap with clips Filters up to 2 liters per minute 42mm, wide-mouth opening makes for easy filling from a lake, stream or faucet Simply shake or swish the EZ-Clean membrane to remove debris Tested up to 1,000 liters; individual results will depend on water quality Also included is a carry bag and separate bag for the outlet hose to keep it clean and avoid cross-contamination Made with BPA-free materials