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Regular price $269.99 $248.39 Our Price

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  • 12-month warranty.

Fast, no-pump water filtration in an ultralight system.

Updated for 2017: The supreme ease of the AutoFlow Gravity Filter has converted many backcountry travelers to pump-free water filtration. Now, it offers the luxury of effortless water storage and filtration in a more compact, lightweight and streamlined system.
Efficient hollow fiber technology filters up to 1.75 liters per minute, and quick and easy tool-free cleanings maintain high flow rates on extended expeditions. Choose the 4-liter system for groups and base camps. The 2-liter system is perfect for backpacking pairs.

Tested: Meets NSF protocol P231 for removal of bacteria (99.9999%) and protozoa (99.9%) from beginning to end of filter life in “worst-case” water.
No Pumping: Lets gravity do the work so you don't have to.
Fast: Filters more than 1.75 liters per minute.
Lightweight: 2-liter system weighs only 300 g. 4-liter system weighs just 315 g.
Field-Maintainable: Can be backflushed repeatedly without disassembly to regain flow rates.
Adaptable: Filter directly into most any bottle or reservoir with included Universal Bottle Adapter.


2 Litre : Weight 300g Width 15.6cm Length 12.7cm Made in the USA

4 Litre : Weight 315g Width 28.7cm Length 50.8cm Made in the USA