MSR

MSR AutoFlow Gravity Filter 4L

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The MSR Autoflow Gravity Filter 4L is a very fast and efficient, no-pump portable water filter in an ultralight system.

The supreme ease of the MSR AutoFlow Gravity Filter has converted many backcountry travellers 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 fibre technology filters up to 1.75 litres per minute, and quick and easy tool-free cleanings maintain high flow rates on extended expeditions. Choose the 4-litre system for groups and base camps.

Features

  • 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 litres per minute
  • Lightweight: 4-litre system weighs just 320g 
  • Field-Maintainable: Can be back-flushed repeatedly without disassembly to regain flow rates
  • Adaptable: Filter directly into most any bottle or reservoir with included Universal Bottle Adapter

Specification

  • Weight: 320g
  • Width: 28.7cm
  • Length: 50.8cm

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