• 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 • This filter includes an output hose that let’s you fill water bottles and hydration systems • Easily hang the durable and collapsible 3-litre Hydra Oak reservoir with integrated bail handle and carry loop/hang strap with clips • Filters up to 2 litres per minute • 42 mm, wide mouth opening makes for easy filling from and lake, stream or faucet • Simply swish or shake the eth EZ-Clean membrane to clean • Tested to 1,000 litres • Made with BPA-free materials With the Katadyn Gravity BeFree 3.0 L Microfilter, you can drink directly from the reservoir or easily fill a bottle or other reservoir. Let gravity do the work when you need clean drinking water.