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MSR AutoFlow Gravity Microfilter

Our Price: $119.95

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The MSR AutoFlow Gravity Microfilter represents the latest evolution of backcountry hydration, combining water filtration, storage and collection into a single, lightweight system. It's as simple as "Fill it. Hang it. Forget about it." Letting gravity do the work this MSR AutoFlow Gravity Microfilter filters more than 1.75 liters per minute without a single pump stoke. At a weight of only 10.5 oz. the AutoFlow is sure not to weigh you down along you favorite trail. With a reservoir capacity of 4 liters the AutoFlow allows you to filter large quantities of water at once making it perfect for groups, while quick and easy tool-free cleanings maintain high flow rates on extended expeditions. Let gravity to do the work for you and supply fresh and clean water for your next backcountry adventure with the MSR AutoFlow Gravity Microfilter.

Key Features

  • No Pumping: Let's gravity do the work so you don't have to.
  • Lightweight: Weighs only 10.5 oz. (299 g).
  • Adaptable: Connects to most any bottle or reservoir with included Universal Bottle Adapter.
  • Fast: Filters more than 1.75 liters per minute.
  • Field-Maintainable: Can be cleaned repeatedly without disassembly for flow recovery.


Weight 10.5 oz./299 g.
Dimensions 4 x 6 in./10 x 15 cm
Cartridge Life Up to 1 500 liters