MSR - Autoflow Gravity Filter

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MSR - Autoflow Gravity Filter

Availability: In stock

Stock #: 78945

Pumping is hard

The AutoFlow Gravity Microfilter represents the latest evolution of backcountry hydration, combining water filtration, storage and collection into a single, lightweight and pump-free system. With the latest Hollow Fiber technology and the power of gravity, the AutoFlow microfilter is fast as wellup to 1.75 liters per minute without a single pump stoke. 4-liter reservoirs allow you to filter large quantities at once making it perfect for groups, while quick and easy tool-free cleanings maintain high flow rates on extended expeditions.


  • No Pumping: Lets gravity do the work so you don't have to.
  • Fast: Filters more than 1.75 liters per minute.
  • Lightweight: Weighs only 10.5 oz. (299 g).
  • Field-Maintainable: Can be cleaned repeatedly without disassembly for flow recovery.
  • Adaptable: Filter directly into most any bottle or reservoir with included Universal Bottle Adapter.
  • Effective against protozoa: Yes
  • Effective against bacteria: Yes
  • Effective against viruses: No
  • Effective against particulate: Yes
  • Effective against chemicals/toxins: No
  • Weight: 13.8 oz / 392 g
  • Width: 4 in / 10 cm
  • Length: 6 in / 15 cm
  • Filter media: Hollow Fiber
  • Filter pore size: 0.2 microns
  • Flow (L/min): 1.75 liters per min
  • Cartridge life: ~1500 liters
  • Field cleanable: Yes
  • Field maintainable: Yes
  • Made in Seattle, USA
  • Water Bottle Adapter Yes

Additional Information