The minimalist, ultralight and ultracompact GravityWorks 2.0L/4.0L Bottle Kit uses a simple and easy design to connect the pump-free water filter directly to a water bottle or hydration reservoir, conveniently filtering up to 1.5 liters of water a minute for 1-2(2-4) people.
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The 2 liter gravity fed filter is perfect after a long day on the trail. To use, you simply need to fill the dirty water reservoir, attach the filter and clean water reservoir, and let gravity do the work for you! It will filter out both protozoa and bacteria as a rate of about 1.5 liters per minute.