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MSR AutoFlow Gravity Filter
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MSR AutoFlow Gravity Filter

Item # 768117

$99.95

Item qualifies for annual
REI Member Refund (typically 10%)

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Let gravity do all the work with the extremely efficient and pump-free MSR AutoFlow™ Gravity filter system.

  • Hollow fiber technology offers a high flow rate of more than 1.75 liters per min.
  • Weighing in a mere 10.5 oz., the AutoFlow carries easily on lightweight backpacking trips
  • Filter physically removes particles, protozoa, and bacteria down to 0.2 microns in size, including giardia, salmonella, cryptosporidia and others
  • Pump is fully field maintainable and does not require tools for complete disassembly
  • Operation is simple—fill the 4 liter collection reservoir with dirty water, connect it to the filter with the quick disconnect fitting and let the water flow
  • Universal bottle adapter offers multiple options for filling your water bottles and hydration reservoirs
  • Adapter threads fit wide-mouth Nalgene bottles and MSR Dromedary™ bags; adapter also presses into openings of Platypus Hoser™ reservoirs and Sigg water bottles
  • Or, remove the bite valve from your CamelBak or Platypus reservoir and attach your hydration drink tube to the universal bottle adapter to fill up
  • Included shut-off clamp lets you control the water flow so you won't waste a drop of clean drinking water
  • Kit also contains a filter test guide, a storage sack and instructions

Please note: MSR products can only be shipped to U.S. addresses.

Made in USA.

Item 768117

MSR AutoFlow Gravity Filter Specs

Specification

Description

Weight10.5 ounces
Dimensions(Cartridge) 1.9 x 5.7 / (reservoir) 22 x 10 inches
Filter mediumHollow fibers
Housing materialABS plastic
RemovesProtozoa and bacteria
Output1.75 liters per minute
Field cleanableBack flush

MSR AutoFlow Gravity Filter Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
MSR AutoFlow Gravity Filter
 
4.8

(based on 4 reviews)

100%

of respondents would recommend this to a friend.

Pros

  • Lightweight (4)

Cons

    Best Uses

    • Backpacking (3)
    • Hiking (3)
    • Reviewer Profile:
    • Avid adventurer (3)

    Reviewed by 4 customers

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    Displaying reviews 1-4

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    Oct

    1

    2009

    (3 of 3 customers found this review helpful)

     
    4.0

    Clean water , little effort

    By TrailGuy

    from Coeur d' Alene, Idaho

    About Me Avid Adventurer

    Site Member

    Pros

    • Easy to pump
    • Good filtration
    • Lightweight
    • Low maintenance

    Cons

    • Design change needed

    Best Uses

    • Backpacking
    • Day trip
    • Hiking

    Comments about MSR AutoFlow Gravity Filter:

    Drinkable water in camp is no longer a half-hour chore by the stream. Great product.
    One down side: MSR recommends the user backflow the filter after filtering each 8 liters of water. Problem is that when using a Nalgene bottle or a camelbak, a sucton is formed and no liquid will reverse flow through the filter. I sent the system back to Cascade Designs and they drilled a hole in the "Universal Cap." This should fix issue for me, but I don't think a design change is soon planned.

    • Gift:
    • No

    Bottom Line Yes, I would recommend this to a friend

    Images shared by TrailGuy

    Arrow points to hole drilled by MSR in cap

    Image Thumbnail

    Tags: Picture of Product

    (3 of 3 customers found this review helpful)

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    Nov

    6

    2009

    (1 of 1 customers found this review helpful)

     
    5.0

    REVOLUTIONARY!!

    By JAXXHOBBS

    from Estes Park Colorado

    About Me Avid Adventurer

    Site Member

    Pros

    • Lightweight
    • Tough

    Cons

      Best Uses

      • Backpacking

      Comments about MSR AutoFlow Gravity Filter:

      We used this on a 14 day backpack on the Wonderland Trail around Mt. Rainier. What a fabulous addition to our gear. Just fill it up, hang by a tree knob, and turn it on and off at will like a faucet. Wonderful water, usually only one trip to the creek to scoop it up. Then, you filter the water at camp by gravity at will. Unbelievably cool. We also carried a Steripen for use if we needed more water during the backpacking day.

      • Gift:
      • No
      • What Is Your Gear Style:
      • Comfort Driven

      Bottom Line Yes, I would recommend this to a friend

      (1 of 1 customers found this review helpful)

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      Please let us know what kind of issue this is:

      Aug

      20

      2009

      (1 of 1 customers found this review helpful)

       
      5.0

      Great improvement here!

      By flyhike

      from Eureka, CA

      About Me Casual Adventurer

      Site Member

      Pros

      • Easy to clean
      • Good filtration
      • Lightweight
      • Low maintenance
      • No Pumping

      Cons

        Best Uses

        • Backpacking
        • Hiking

        Comments about MSR AutoFlow Gravity Filter:

        Four of us just got back from 10 days in the southern High Sierra and we all agreed that this system is great! We had a Miniworks for backup just in case and we did not use it at all. This system is very simple to use. We found that we could always find a branch or rock to hang the reservoir on but sometimes you have to get the air bubbles out of the hoses...also we found that it worked better if you left the adapter loose on the Nalgene bottle so air could escape...other than that it worked perfectly, no downside that we could see.

        • Gift:
        • No

        Bottom Line Yes, I would recommend this to a friend

        (1 of 1 customers found this review helpful)

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        Please let us know what kind of issue this is:

        Mar

        6

        2010

         
        5.0

        Great System!

        By LazySherpa

        from Santa Monica, CA

        About Me Avid Adventurer

        Pros

        • Adjustable
        • Compact
        • Easy to Use
        • Good Quality
        • Improves Function
        • Lightweight

        Cons

          Best Uses

          • Canteens & Coolers
          • Hiking/Camping
          • Hydration Packs
          • Water Bottles

          Comments about MSR AutoFlow Gravity Filter:

          This is a great filter system. Used it for 4 people in the High Sierras in October and it was fantastic. Just fill it up, let it hang and attach it to your bladder while you set up camp. That easy. Back flush every once in awhile for maintenance, which is turning the filter around and reversing the process to clean it out.The ONLY concern is that the hollow fiber technology used by MSR for this and the Mini-works are not suppose to freeze. It got down to 25 on the trip so put the filter part inside at the bottom of my sleeping bag and it was fine. Best filter I have used. You can just have 4+ liters of water just hanging (literally) around camp for filling up cooking pots, cleaning or whatever.

          • Gift:
          • No

          Bottom Line Yes, I would recommend this to a friend

          Was this review helpful? Yes / No

           - You may also flag this review

          Please let us know what kind of issue this is:

          Displaying reviews 1-4

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