User Review: Platypus GravityWorks Filter System
Price Paid: $100
What gets better than being able to filter dirty stream water into clean drink water in less than 2 minutes and you're getting 4 liters of it at once in a carryable bag. The bags are very thick and durable as well as the rest of the materials for the filtration unit.
The filtration system is so easy to use you can pull it right out of the bag and start to use it. Everything is labeled clean bag, dirty bag, which way to filter the water through the filter and so on.
When you're done using the unit just roll the bags up unhook the hoses from the filter and throw everthing into your pack and you are ready to keep on trekking. I wouldn't get anything else this is extremely practical and efficient to use on the trail.
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