MSR Miniworks EX Microfilter

MSR Miniworks EX Microfilter is rated 4.5 out of 5 by 20.
  • 2015-08-31T17:47CST
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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

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Rated 4 out of 5 by from Survived on water pumped through this for a week. In combination with tablets, this filter did exactly as advertised and provided myself and a companion with clean drinking water from a scuzzy, boggy lake. We pumped 2 liters at a time and then treated the whole bladder with the MSR tablets to add another layer of protection and it seemed to work like a charm. No trip-ending diarrhea or other illnesses and we went through many, many liters of lake water from different spots. It goes a little slow, but with two people (one to submerge the end so it doesn't drag on the bottom and one to pump into the bladder) it was over in about 5 minutes per round. Easy to clean and better than a sock.
Date published: 2014-12-08
Rated 3 out of 5 by from It has its ups and downs The pump is easy to clean and maintain which is a plus. Its also nice for times when there is very little water to get at and beats out the gravity bags in those cases.,,,,I have had some issues recently with this pump where the chamber doesn't fill all the way or fast enough to keep up with the recommended pumping rate, which is kind of a pain. Attaching a nalgene to the bottom for filling up is recommended, as it will make life much easier for you, other wise you might need your buddy to hold your bladder while you pump. I wouldn't mind having an accessory for connecting to bladders with a larger opening to eliminate the need of carrying a nalgene.
Date published: 2014-10-30
Rated 5 out of 5 by from Most bombproof Pump On the Market This pump may not be the lightest, but it is reliable and can filter more water than you will ever need on one trip. The entire assembly can easily be taken apart and checked out in the field and cleaned. It also stows well with the hose wrapped around the pump and secured to the end of the handle. In about 5 minutes of easy pumping you can have yourself clean crisp drinking water. The best part is that it can be filtered directly into a nalgene or a dromedary bag to make the process even easier. Use a coffee filter rubber banded to the end to filter out the first layer of dirty water to further extend the life of this filter.
Date published: 2015-03-10
Rated 3 out of 5 by from Great taste, but very slow Have used this for 4 years. Pros: It's the best tasting water I have ever filtered (5 stars on flavor). I also love that it screws onto my hydration bladders. Cons: It is very slow (only pums in one direction of the handle movement). If I'm using it for 1 or 2 people it's fine, but for more than that I wish I had a Katadyn that pumps in both directions, but tastes like paper. -and yes I know how to use it and I clean the filter all the time.
Date published: 2015-08-30
Rated 2 out of 5 by from Get a Steripen This product does not work well for ANY sort of slow-moving body of water, even clear ones. Worked great for the first liter, and then the filter clogged immediately. I was getting about a quarter of a cup every five minutes and having to clean multiple times per liter. It was TRICKLING.,,,,Luckily, a trail angel we met up with let us try out his Steripen. So much more painless and fast and light and not bulky. It's great that this product doesn't require batteries, but it is not ideal. That being said, it is really well made and will last a long time if you choose to go the filter route. Components are intuitive to use and most of what you need to maintain the filter is included.
Date published: 2015-02-22
Rated 5 out of 5 by from Awesome product! ...but make sure to read directions first I've been using the MSR Miniworks EX Microfilter for over a year now. I have to admit, the first few times I used this I ran into several problems, but that was before I read the (very useful) directions that came with it. Once I figured this thing out, it is a very simple and reliable product.,,,,Water tastes absolutely fantastic with this filter. I have never had any residue or any weird taste in the water. It also conveniently attaches to my CamelBak water bottle and MSR hydration system.,,,,Please read the directions first and clean the ceramic filter often. Water will pump MUCH faster and easier when it is used properly. From my experience, it takes 1-2 minutes per liter of water.
Date published: 2013-09-23
Rated 4 out of 5 by from Try it, you will like/like it! I know my way around backpacking, not enough that I could go alone, but enough. I have used this filter for the last 5 trips and it is trusty. I am kind of weird about germs and a little bit of a hypochondriac. I was afraid the first time using the filter that I was definitely going to get deathly sick and die from drinking the water, but I didn't, and now I 100 percent trust this filter! We have used it in flowing creek water and straight out of lakes and we are still alive! The water out of the filter tastes fine and clean. It is a bit rough to pump for so long as it filters pretty slowly but that's my opinion and I can't even do a push-up. I like the challenge and I need the work out.
Date published: 2015-04-13
Rated 5 out of 5 by from Easy to Use, Awesome results This product is all that it says it is, a fantastic filter. Although "mini" works may be stretching it (it does require some work to filter water) the filter is extremely easy to use, disassemble and maintain. It is a little bulky in comparison to other filters out there but the ease of you simply attaching it to a nalgene wide mouth bottle and pumping away is great. I recommend taking the 10 second after each fill up and cleaning off the ceramic filter. This will help with water flow and ease of pumping. Overall this filter is tough, easy to use and easy to maintain on the trail.
Date published: 2015-02-03
  • 2015-08-31T17:47CST
  • bvseo_cps, prod_bvrr, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasreviews, tv_-1, tr_21
  • loc_en_US, sid_10238404, PRD, sort_relevancy
  • clientName_moosejaw

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
  • 2015-08-31T17:17CST
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