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MSR Miniworks EX Microfilter

by MSR

List Price: $89.95
Price: $81.08 & FREE Shipping. Details
You Save: $8.87 (10%)
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
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One Size
  • Durable carbon/ceramic element ensures safe, taste-free water-even with frequent, heavy use.
  • Can be cleaned repeatedly for full filter recovery with no tools required.
  • AirSpring Accumulator increases filtration speed; up to 1-liter per minute.
  • Carbon core removes unpleasant tastes and odors caused by organic compounds, such as iodine, chlorine, and pesticides.
  • Effective against protozoa, bacteria, chemicals/toxins, and particulate
40 new from $81.08 2 used from $73.63

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Frequently Bought Together

MSR MiniWorks EX Microfilter + MSR MiniWorks/WaterWorks EX Ceramic Element
Price for both: $121.03

Buy the selected items together

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  • Product Description

    Filter your water year after year with the MSR MiniWorks Ex Water Filter. Clean this lightweight, compact filter back to like-new condition, without any disassembly tools. The MiniWorks ceramic element ensures long-lasting protection against bacteria, protozoa (including crypto and giardia), and particulate, and the carbon core removes yucky tastes. MSR's little wonder (7. 5 x 2. 75in) can filter up to 1 liter per minute. As a bonus, the MiniWorks Ex Water Filter screws onto a standard Nalgene bottle or any MSR dromedary bag. *Kit includes stuff sack, hose float, scrub pad, and instructions.

    Product Details

    Color: - | Size: One Size
    • Product Dimensions: 9.5 x 7 x 3.8 inches ; 1 pounds
    • Shipping Weight: 1.6 pounds (View shipping rates and policies)
    • Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
    • Origin: USA
    • ASIN: B000BBF2RY
    • Item model number: 56425
    • Average Customer Review: 4.5 out of 5 stars  See all reviews (245 customer reviews)
    • Amazon Best Sellers Rank: #4,771 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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    Customer Reviews

    MSR water filters are the best.
    Bartley
    Easy to use lightweight, and works very well in both fast water and lakes no Hassel easy to clean in the field.
    Scott Schlotz
    The filter is simple to use, pumps quickly, and is very easy to disassemble, clean, and reassemble.
    Paulie T

    Most Helpful Customer Reviews

    536 of 538 people found the following review helpful By R. Zamudio on November 8, 2009
    Color Name: -Size Name: One Size Verified Purchase
    I researched filtration systems for almost a month before settling on the MSR miniworks. I figured I could just go pick one up at the local Cabela's or REI, but BOTH retail stores were sold out of these, while there was still a good supply of the other MSR and Katadyn filter systems on the shelf. I took this as a sign that this is the filter to have and ordered it from Amazon, and it has been worth every penny. Read on....

    In Camp:
    The filter is very simple to use and has a good output-per-pump ratio. You never really feel like you are doing more work than you should for the amount of water you are pushing through, especially if you take into account the fact that every pump is worth about one gulp of nasty water that you WON'T have to drink. If you do see a diminished output, simply unscrew the filter housing and give the element a light scrubbing. We were taking water from a brown lake that is loaded with tannins and we would get about 2 litres through (about 2 full-size nalgene bottles worth) before we noticed the filter could use a cleaning. Tannin-loaded water is supposedly some of the worst for clogging these ceramic filters, so if you have cleaner water sources at your site than we do, your element-cleaning cycles should be farther apart. The water came out crystal-clear and almost tasteless. It didn't taste like Dasani bottled water, but it definitely didn't taste like tea-colored lake water either. Pretty much neutral. More importantly, it tasted CLEAN and nobody got sick. Also, the MSR Miniworks requires no chemical additives but still claims to filter everything but viruses. The chance of contracting a waterborne virus from a U.S.
    Read more ›
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    200 of 205 people found the following review helpful By Your Pen name will be displayed in all of your public Amazon contributions on September 18, 2007
    Color Name: -Size Name: One Size
    This is a great filter, I've it used on many hiking trips. It pumps fast which is great when filtering for more than one person, though at 16 oz. it is not the lightest filter on the market but it's design makes it very field maintainable. The MiniWorks has one annoying weakness that can leave you in a world of hurt when deep in the wilderness. The ceramic filter element is very fragile, I have broken two with no trouble at all. At $35.00 to $40.00 a pop to replace, it is something to keep in mind, be very careful when cleaning the element.
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    87 of 93 people found the following review helpful By Michael the Skeptic on October 11, 2010
    Color Name: -Size Name: One Size Verified Purchase
    I use this water purifier while backpacking in the western US. I think there are different strategies to purifying water from doing nothing to adding chemicals etc. There is evidence that waters in the Sierra Nevadas that come out of glaciers are probably not contaminated. But the only way to prove that is by testing or making certain that there is nothing between you and the source of the water. For me, safety matters. I don't want to be losing water and calories while my intestinal tract runs amok, so I purify water. I don't like the taste of chemical treatments like iodine and chlorine, which may not work if not done right. Boiling water takes too much time, and if you need to stock up on several liters in a dry area, you may not be able to boil enough. That's why I chose a filtration system. And I looked over every brand and model, and chose the MSR MiniWorks based on the following:

    1. It is lightweight (I used to have a Katadyn, which is built and weighs like a rock), so it's not going to add too much to your pack. It's heavier than chemicals or some of the UV systems, but it's not bad. It comes in a nice little mesh bag, so you can stuff it into a corner of your pack.

    2. It has a 0.45µ filter, which removes 99% of bacteria, and probably 99.999% of parasites (like giardia). It does NOT remove viruses, but unless you're in a crowded city without a good sewage system, I probably wouldn't worry about it. MSR makes a filtration system that adds chlorine, but for a North American or European trip, not worth it.

    3. The bottom of the device fits onto standard wide mouth Nalgene bottles and canteens. I have several 3L canteens that I can fill in 2-3 minutes. It makes it easy, reduces spillage, and just is cool.

    4.
    Read more ›
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    69 of 80 people found the following review helpful By Pete S. on January 31, 2007
    Color Name: -Size Name: One Size
    The MSR MiniWorks is a fantastic water filter. I've used it while camping and hiking in the wild, as well as in the US Army with some really funky water from old pipes.

    While it doesn't remove all the bad taste of the funky water, it certainly removes harmful bacterial, cysts, and protozoa. I don't believe it's rated to remove viruses, but boiling certainly will. I've used it in clear and cloudy lakes, rivers, and streams and haven't gotten sick. Definitely worth the money.
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    38 of 43 people found the following review helpful By wolfefreespace on August 21, 2006
    Color Name: -Size Name: One Size
    This is a great little device. It is designed so that a standard Nalgene bottle attaches to it. It can take brown, sandy water and make it drinkable. I've taken one to the Boundary Waters Canoe Area Wilderness 3x, and it has never let me down (e.g. I never got any dread disease from the water). It is light, easy to clean, and so simple a 6 year old child can use it. The only drawback is (and this is not really a complaint) that if the water is not spectacularly clean to begin with, the cylinder that does the filtering needs to be scrubbed often (after 2 or 3 liters) to work at its best. Nevertheless, I'd buy one again.
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