The Platypus GravityWorks 4.0L Filter System is a water filter for the whole group. In 2.5 minutes, you've got 4L of water, ready to drink, cook with, clean a little. Your basecamp group will love getting put on water duty, because all they have to do is fill up the dirty bag with water from the source, then hang it higher than the clean bag, connecting the filter between the two. Then walk away, completing another task as you wait. Simple, easy, more time to enjoy your surroundings.
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