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  • MSR - AutoFlow Gravity Filter - One Color

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  • MSR - AutoFlow Gravity Filter - One Color

MSR AutoFlow Gravity Filter

$109.95 - $119.95

Free 2-Day Shipping on Orders Over $50 Order by 12/20*

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    • One Color, 2L
      $109.95
    • One Color, 4L
      $119.95
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    4 Reviews

    Details

    Let gravity do the work.

    Collect, filter, and store your water in the backcountry with the quick and convenient MSR Autoflow Gravity Filter. This field-cleanable filter lets gravity do the work and cleans nearly two liters of water per minute. The four-liter reservoir holds enough hydration for your whole group, and the adapter end piece fits onto most standard water bottles and reservoirs. It's field cleanable, too, so you can remove all the bacteria, protozoa, and sediment that's been filtered out and have a filter that's good as new in minutes.

    • Gravity filter for easy cleaning of drinking water in nature
    • Filters out bacteria, protozoa, and sediment
    • Quick filtration gets you 1.75-liters per minute
    • Tool-less cleaning makes it easy to clean in the field
    • Filter directly into most any bottle
    • Item #CAS009L

    Tech Specs

    Material
    hollow fiber
    Purifying Element
    filter
    Eliminates
    bacteria & protozoa, sediment
    Filter
    gravity
    Action
    gravity
    Volume
    2L, 4L
    Flow
    1.75L per minute
    Field Cleanable
    yes
    Dimensions
    [2L] 8.5 x 15in, [4L] 11.3 x 20in,
    Claimed Weight
    [2L] 10oz, [4L] 11.1oz
    Recommended Use
    hiking, camping, backpacking
    Manufacturer Warranty
    limited lifetime

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Very good

    • Familiarity: I've put it through the wringer

    Very nice to be able to fill the bag and fill bottles or bladders as needed. Worked great at elk camp for multiple people. One thing to consider is that in freezing temps it really slows down or doesnt work at all until the filter element warms up or is thawed out. Seems obvious but it was not something I had considered for this trip. I’d also consider getting at least one more filter for longer trips with multiple users sharing it. I have no complaints over the function of the product and I didnt end up with any water borne illness or infections after drinkin gallons of back country water.

    good volume to energy expendeture ratio

      MSR's gravity filter helps streamline lightweight backpacking setups and conveniently cuts out time spent pumping water upon making camp.
      MSR's gravity filters have a well-deserved reputation for quality, and while I think that there are a lot of good water filtration systems out there, there aren't many that accommodate such a large volume, and require so little work.

      Very Convenient

      • Familiarity: I've put it through the wringer

      I bought this filter to be used while working for the Forest Service In Idaho. I ended up choosing this filter primarily because I was looking for an alternative to pumping water. I mean does it get any easier than using gravity to filter water? Sign me up.

      I really like the ease of filtering. All you have to do is fill the bag roll the top and hang the bag up in the tree and you are good to go. This bag is definitely really convenient but does have a few downsides.

      To start off it is heavier than other non pump options. The other downside is having a place to hang it up which can be tricky in some environments.

      Overall this is great filter for the right environment.

      Mr. Clean

      • Familiarity: I've used it several times

      I've used pump filters and steripens and then this gravity filter. Life changing. Steripen works about 50% of the time, not worth it. Pump filters are great if you want an arm workout after a hike or are melting snow.

      If you want to filter water for a group of 4 while backpacking, get this. Easy to set up, use, filter, clean. Took a couple tries to get right, and occasionally my dofus friends would get air bubbles in it which slows things down but if you follow the directions, you'll be filtering water with ease in no time.

      Took this on a 3 day backpacking trip through the Enchantments in WA, group of 8 and this was all we used. No one got the runs.