Elevate your game and let gravity do the filtering with the BeFree(TM) 3.0L water filter system from Katadyn. You can fill your hydration bladder with the included quick-release hose kit. Easy to use: fill and hang the ultra-durable HydraPakA(R) 3.0L reservoir using the integrated Bail Handle & Carry Loop; filters up to an impressive 2 liters per min. Easy to clean: simply shake or swish the EZ-Clean Membrane(TM) to remove debris Collapsible 3.0L reservoir packs down small 0.1-micron microfilter is tested to protect against harmful organisms, removing protozoa (99.99%) and bacteria (99.9999%) to EPA standards Please note: the initial packaging incorrectly stated that this product meets EPA standards for virus removal. Refer to the product manual for more information. 43mm, wide-mouth opening makes for easy filling from any lake, river, stream or faucet Tested to 1,000 liters; individual results will depend on water quality BPA-free Dimensions (in) 9 x 3 x 19 Output (gal) 2 quart/min Technology Hollow fiber filter 0.1 micron Weight (oz) 7