The GravityWorks can be used to store and carry up to 8 liters of water. Filter the first 4 liters from the dirty reservoir into the clean reservoir. Now add another 4 liters of unfiltered water to the dirty reservoir. When you get back to camp, dispense the clean and filter the dirty. Whether you are traveling through Asia, hiking in the backcountry or climbing in the Himilaya, the GravityWorks filter is the fastest, lightest and most versatile way to collect, carry, filter and dispense water.
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