MSR Miniworks EX Microfilter

MSR Miniworks EX Microfilter

MSR Miniworks EX Microfilter is rated 4.5 out of 5 by 152.
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4.5 Star Rating
4.5
$89.95

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Product Description Item No.   10238404

Moosejaw Staff Pick - Jeff, Moosejaw Secret Headquarters

FEATURES of the MSR Miniworks EX Microfilter

  • Long-Lasting: Durable ceramic element filters up to 2,000 liter
  • Solid Activated Carbon Core: Removes unpleasant tastes and many chemical contaminants
  • Fast Flow Rate: AirSpring accumulator increases filtration speed up to 1 liter per minute
  • Field-Maintainable: Can be cleaned repeatedly for full filter recovery, no tools required for complete disassembly
  • Testing: Meets NSF protocol P231 for removal of bacteria (99.9999%) and protozoa (99.9%) from beginning to end of filter life in "worst-case" water
  • Reliable: Durable carbon / ceramic element ensures safe, taste-free water-even with frequent, heavy use
  • Fast Flow: AirSpring Accumulator increases filtration speed up to 1-liter per minute
  • Better-tasting Water: Carbon core removes unpleasant tastes and odors caused by organic compounds, such as iodine, chlorine, and pesticides
  • Made in USA

- + Product Specifications
Disclaimer: We only ship this brand to US Addresses.
Packed Dimensions: 7.5 x 2.75 in.
Weight: 16 oz
Eco Friendly: Yes
Filter Rate: 1 liter / minute
Features: Field Cleanable, Replaceable Filter, Made in USA
Best Use: Backpacking, Camping, Car Camping, Hiking
Effective Against: Protozoa and Bacteria
Cartridge / Cycle Life: 2000 liters
Filter Type: Pump
Rated 5 out of 5 by from what can I say, it works! Originally when I rated this product. I only gave it 4 stars. I didn't like having to clean the filter after each liter of water to maintain efficient pumping. I decided to put another rating on here because I think I was too hasty. After my last hiking trip I noticed that the miniworks was far superior to other brands for clean water. My friends brought two different types. one that works by gravity, and the other looked like a straw that you squeeze the water from one bag to another. Initially both of their products seemed to be faster than mine. But, after the first day theirs got slower and slower. I also noted that their water never was completely clear. By the third day I ended up having to wait for them to finish getting water. The miniworks maintained a constant rate of filtration the entire time. Not to mention the water was noticeably clearer! Yes I had to take the time to scratch pad the filter after each Liter. But in my mind it was worth it.
Date published: 2017-06-30
Rated 3 out of 5 by from It works, but needs very frequent cleaning I have used a couple different units. even using pretty clean lake water, it needs a lot of cleaning in order to fill even a couple water bottles.
Date published: 2017-06-24
Rated 5 out of 5 by from You can have good fast or cheap pick two. I use this pump for backcountry scout trips. It's not the fastest pump out there but I have filtered gallons and gallons of water without issue. When you need to filter 20 L at a clip this pump is not the fastest. The water is always crystal clear, good tasting, and safe. I trust it to filter water for other people's kids. I think that sums it up.
Date published: 2017-06-15
Rated 4 out of 5 by from
Date published: 2017-06-13
Rated 5 out of 5 by from Very nice Perfect size with high quality feel. Very happy with choice.
Date published: 2016-11-10
Rated 5 out of 5 by from My filter of choice I purchased the MSR because I wanted a cleanable filter and, being a kayaker, was not concerned with weight. The filter screws onto my MSR, Reliance and Nalgene bottles which is a great help as I do not need to worry about my clean hose getting dirty. As a fanatic regarding pre-filtering, I have never had any problems and suspect that complaints about clogging are the result of the buyer trying to filter mud. So long as you use the thing properly and prefilter, the Miniworks will last forever. I bought one for a friend whose dog chewed the handle off but a piece of PVC was added and the filter continued to work well. Re the comment about lack of customer service... I lost the duckbill valve after one trip and a casual request to MSR asking if they knew where I could buy a replacement as their website does not mnention them netted an immeiatereply asking for a mailing addressand afewdays later I got a replacement valve for free. The Miniworks is a good filter and I generally keep it in my dryhatch for all trips.
Date published: 2016-10-21
Rated 5 out of 5 by from I like my water to taste great!! There are other ways to treat your water before you drink it, but I like my water to taste good. With the Miniworks EX, multilevel filtration occurs, from the foam covered source point, to the ceramic, your water will be filtered down to 0.2microns! And with the carbon block filter inside the ceramic filter unit, foul taste and smells are also removed. I especially appreciate how the design of the Miniworks EX makes it simple to field clean and maintain the unit for my backpacking filtration needs. My unit has been used on gritty glacier fed streams, rivers, lakes, and tannin rich bog water, and my water tasted great!!
Date published: 2016-10-18
Rated 5 out of 5 by from Fast, Reliable and easy to use. I have been using this pump for many years with no problems, its been very reliable! It works best with running water or water away from sediment. You can pump from pretty dirty water but this may result in having to clean the filter depending on the amount of water you need. Overall I have not gotten sick from any water that I have pumped through the miniworks.
Date published: 2016-08-28
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Reviews show ups and downs. Has there been any type of redesign on this product lately ? Or is it operator era ? I would like to purchase one, but reviews leave me wondering. Thanks

Asked by: Brad
Brad, There has not been a redesign on the MSR Miniworks EX Microfilter. I took a moment to read through the reviews and, Im not seeing a consistent issue. The thing in the reviews that is consistent is praise. I have seen the MSR Miniworks EX Microfilter filter water, and it worked wonderfully. I hope that this helps. Happy Trails.
Answered by: Rocko Gigsby
Date published: 2017-05-29

what is the purpose of the red crescent shaped piece from the picture?

Asked by: curious george
Hey there, The red crescent pictured for this item is a gauge that is used to measure the erosion of the ceramic element of the filter during routine cleaning and maintenance.
Answered by: Rocko Gigsby
Date published: 2015-08-12
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