MSR AutoFlow Gravity Filter

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Description

Gravity is good…the MSR AutoFlow Gravity Filter uses the Earth's sucking power to filter one liter of water in just one minute. Keeps your posse hydrated with clear liquids by removing 99% of bacteria, protozoa, and particulates.

Specifications

  • Flow rate: 1 liter in 1 minute produces clean water nearly on demand
  • Filters out 99.9999% of bacteria, protozoa, and particulates for pure water confidence
  • Disassembles and flushes without a single tool for easy maintenance and flow rate recovery
  • Package includes taste-free water bag, all hoses, fittings, and filters
  • Filter element: hollow core
  • Element pore size: 2 micron
  • Output rate: 1 liter / 1 minute
  • Dimensions: 4 x 6 inches
  • Weight: 10.5 ounces (empty)

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Review Summary

5 out of 5

5 Reviews

Pros
  • Build quality: 3
  • Ease of use: 3
  • Great design: 3
  • Great value: 2

Durability: 5 / 5
Quality: 5 / 5

5 Ratings & Reviews

Sweet device, sweet deal, sweet water!
January 11, 2010

High quality materials and build as expected from MSR. Works great! Sooo easy to use: fill, hang, drink and be merry. Filters fast so you can fill everyone's bottles and bladders quick. Haul 4 liters back to camp, hang on a tree and it's like having your own spring. Could easily see this thing handling large group hikes etc.

Durability: 5 / 5
Quality: 5 / 5
ScooterSal
top250Contributor

from New York, NY
25-34 yrs

A backpacking lifesaver
March 09, 2011

Buying this filter was one of the best things we did. MSR has another model as well which is slightly smaller and lighter, but where the water needs to be manually pumped. We debated between the two and finally settled on this. The filter is fantastic. It's very easy to assemble, folds up into quite a small package that can be squeezed easily into a corner or the backpack. When we pass by a water body, all we do is fill the bag and hang it up on a tree as hte water filters through. Effortless, and a great opportunity to just have a break for a few minutes while the water filters and refills! The bag has 4L, which is plenty. The water flows fast, and takes about a minute per litre. This filter has totally transformed our backpacking experience by taking away the worry about water. It's an essential.

Pros: Great design, Build quality, Performance, Ease of use
Durability: 5 / 5
Quality: 5 / 5
ajjubes
from new hampshire
35-44 yrs

love it
February 15, 2011

it's so easy to use, and doesn't take too long to filter enough water to last the day. great for long trips. packs up super small and is very durable too!

Pros: Great design, Build quality, Lasts forever, Performance, Ease of use, Great value
Durability: 5 / 5
Quality: 5 / 5
SierraHiker
top100Contributor

Let Gravity do the Work
March 08, 2012

I took this water filter on several backpack trips and every time somebody remarks on what a great filter this is. I couldn't agree more. All you have to do is fill up the bag with water and hang it on a tree branch near your campsite. Instantly, you have running water to fill up water bottles, wash hands, dishes, whatever. I can usually fill up about five liters of water at a time. This sure beats having to sit by a stream or lake and pump for ten minutes.

Pros: Great design, Build quality, Ease of use, Great value

Multi-Tasking Camsite
May 23, 2009

Used on float trip in Alaska. Started water as soon as we decided on campsite. Had water when we were ready never had to wait(after: wood, tent, rafts, gear, game taken care of). While we never had to wait - not for those who need immediate access to water. Overall should be in every kit bag because it works while you are busy with other chores.

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MSR AutoFlow Gravity Filter Photo

Available sizes, while supplies last, include size and size one size: one size, .

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