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MSR MiniWorks EX Water Filter

    MSR MiniWorks EX Water Filter

    The compact MSR MiniWorks EX water filter with EX technology has been proven reliable by thousands and thousands of adventurers around the world.

    • $89.95

    Item # 695265

    REI Members get back an estimated $ 9.00 on this item as part of their annual member refund.

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    • Ceramic/carbon Marathon™ EX element effectively removes bacteria and protozoa including giardia and cryptosporidia
    • Also removes unpleasant tastes and odors caused by organic compounds, such as iodine, chlorine and pesticides
    • Filter can be cleaned over and over for maximum field life with no tools required
    • AirSpring Accumulator™ increases filtration speed up to 1 liter per min.
    • Bottom screws onto an MSR Dromedary® Bag or Nalgene® water bottle for easy operation (both sold separately)
    • Easy disassembly lets you troubleshoot and maintain the MSR MiniWorks EX filter in the field

    Weight reported dry, without accessories.

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

    Made in USA.

    Item 695265

    REI Membership

    Related items

    MSR MiniWorks EX Water Filter Specs
    Best use
    Ceramic with carbon core
    Protozoa and bacteria
    10.4 pounds
    1 liters per minute
    7.8 x 3.8 inches
    14.6 ounces
    Filter type
    Filter medium
    Pump force
    Pump strokes per liter
    Housing material
    Field cleanable

    MSR MiniWorks EX Water Filter

    Loading Ratings & Reviews...

    Rated 4.0563/5 based on 231 reviews
    Rated 1out of5
    by frombroke in backcountry I purchased this filter after significant research and was surprised to find the product malfunctioned on day 2 of 11 days in back country trip in Wyoming. Even folks we ran into on the trail familiar with the model could not figure out what had gone wrong. One couple said they had had problems with their MiniWorks in the past and bought the Water Works to replace it (which they liked). Luckily, we had enough iodine to keep drinking safe water (always bring more than enough iodine!). [...] I was very disappoint with the MiniWorks and would not recommend it. There are less fancy but more dependable water purifiers out there.
    Date published: 2007-11-18
    Rated 1out of5
    by frompoor filter. disappointed in MSR My guide service bought these for all of their leaders. On my first trip out it clogged in mostly clear water. I attempted to clean it with the brush and it moderately improved performance. After trying it for a few weeks I went back to my MSR SweetWater. I found it much easier to pump and clean. Too bad MSR didn't put what they learned from the SweetWater to the MiniWorks.
    Date published: 2007-12-07
    Rated 1out of5
    by fromI'll pass. Uggh! We used this for a week in the Porcupine Mountains and after 2 days, it became almost impossible to use. We tried to clean the filter, which lasted about 1 liter of water, and then it clogged again. I tried to put a bandana over the intake as a prefilter, and it was more of the same, and it even began to shoot water out of the side at one point. Everything else I own by MSR is top notch so I was surprised by the lackluster performance of their water filters. The Sweetwater filter did the same thing. BOO! I'll stick to my trusty PUR Hiker.
    Date published: 2008-01-09
    Rated 1out of5
    by fromThis filter failed on my AT trip. I was fairly happy with this filter until it broke on me. If i hadn't been so upset, I'd wouldn't have smashed it and angrily tossed it into the woods. Yes I feel bad about that and i'm doing my penance for not packing it out...won't happen again. Plus I could have returned it to REI [...].Anyway, the one-way valve busted on it from the pressure accumulated on pushing the water through the filter. I usually clean the filter after 1 gallon at most so it shouldn't have been overly dirty to create so much backpressure.Also, it takes far too much pumping to filter just one liter. Working the pump handle is almost harder than hiking with 50 lbs on your back through the least to your arm.Anyonen carrying one of these filters should be very cautious and carry a backup couple of chlorine dioxide or iodine tablets just in case.
    Date published: 2008-03-12
    Rated 1out of5
    by fromNo longer functioning This unit broke down on me in the backcountry. Fortunately there were other backpackers who let me filter some water by the time I got to the lake. I don't know what I would've done if this was a more isolated trail. This is a disappointing product by MSR.
    Date published: 2008-03-13
    Rated 1out of5
    by fromBuilt to Break I had this unit out on my first trip and it broke. It began spewing water from the connection to the nalgeen bottle and my MSR blader. The bladder is awesome I got a two litre but the filter is horrible. Almost everyone I've spoken to that has owned one for any decent period of time said that this filter has problems. My friend has constant issues with ceramic filter cracking. I am going to try out the Vario by katadyn.
    Date published: 2008-09-07
    Rated 1out of5
    by fromOnly if you like Cleaning Filters I bought this after reading all the good reviews and took it on a week long Kings Canyon backpacking trip with some friends. It worked great the first couple times but then I noticed the filter would quickly become clogged. I thought that was normal until I noticed that my friends water filter (of a different brand) never needed to be cleaned and he was done filling his bottle in 1 minute when it took me about 5! I thought his was broken but his water tasted just as good. Needless to say mine went to the bottom of the pack after the continuous cleaning got old and never saw the light of day again. If you like cleaning filters this is a great water filter.
    Date published: 2009-03-01
    Rated 1out of5
    by frompoor filter I had used an older version of this water filter and was pleased with it. I bought this filter for my backpacking trips and I am very disappointed in this filter. It takes me over 30 minutes to filter 1L of water. I've put a brand new filter in it, primed it and nothing seems to make a difference. Needless to say this water filter is being junked and I'll be buying a Katadyn instead.
    Date published: 2009-06-07

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