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MSR Miniworks EX Microfilter - Moosejaw
 
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MSR Miniworks EX Microfilter

MSR Miniworks EX Microfilter is rated 4.3 out of 5 by 357.
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4.3 Star Rating
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The MSR Miniworks EX Microfilter is an easy way to pump your way to filtered water. The ceramic filter is durable and ready to go, filtering up to 2000 liters of water while you're backpacking or visiting a developing country. Pumping up to 1 liter per minute, you could set up a pretty decent water-filtering race.

Product Description
Item No.   10238404

The MSR Miniworks EX Microfilter is an easy way to pump your way to filtered water. The ceramic filter is durable and ready to go, filtering up to 2000 liters of water while you're backpacking or visiting a developing country. Pumping up to 1 liter per minute, you could set up a pretty decent water-filtering race.

Made in the USA

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
Features: Made in USA, Field Cleanable, Replaceable Filter
Best Use: Car Camping, Backpacking, Hiking, Camping
Weight: 16 oz
Effective Against: Protozoa and Bacteria
Cartridge / Cycle Life: 2000 liters
Filter Type: Pump
Packed Dimensions: 7.5 x 2.75 in.
Filter Rate: 1 liter / minute
Eco Friendly: Yes
Disclaimer: We only ship this brand to US Addresses.
Product Reviews
Rated 1 out of 5 by from Poor function Bought one of these for my BWCA trip. I’ve been filtering water in rustic country for nearly 30 years. First MSR product I have ever been disappointed in. Constant cleaning of the filter with limited water output. Very frustrating to spend so much time trying to get drinking water when prior water filters have worked so well. I would recommend people pass on this one.
Date published: 2022-09-17
Rated 1 out of 5 by from Disappointing, especially from MSR Prior to trip tested in kitchen sink. Flow seemed acceptable, not what I would call quick based on experience with other brands. On 5 day backpack trip in Sierras, crystal clear alpine water, the pumped worked ok through 2-3 liters and then problems started. Extremely slow flow rates, water back-pressured out through inlet tube, and no suction. I ended up cleaning/scrubbing ceramic filter multiple times per liter. Flow would temporarily increase then drop off again and same problems would occur. I spent nearly 45 minutes on last day to fill 4 liters. Brutal. So bummed because I find so many other MSR products invaluable.
Date published: 2022-08-16
Rated 4 out of 5 by from Good for an emergency Good product, but I need a new piston o ring, where can I bueno it?
Date published: 2022-07-17
Rated 5 out of 5 by from Great product Amazing product. Light, reliable, works as advertised. Pumps 20+ litres from northern Ontario lakes before it starts to slow down. A quick filter scrub and it's good to go again. Avoid heavily stained (tannic) water as this seems to clog the filter much quicker. Way better than the Seychelle (clogs easily, unreliable) and is way less expensive than the Katadyn. Definitely recommend!
Date published: 2022-05-10
Rated 5 out of 5 by from Works flawlessly! I used one of these that I borrowed from a close friend and it was perfect, so I decided to purchase two for my field crew, who often camps in remote areas for a week at a time while working. The directions are very easy to follow and the product itself is very well made, just what I expected from a well know company like MSR. Each person on our four person crew takes turns pumping enough water to last the group 24 hours, that way we each get a turn during the week. That said though, it's easy to pump, so it's not really a chore. Aloha, Jake
Date published: 2021-09-28
Rated 5 out of 5 by from Can't ask for more! Been using MSR filtering products for years. The Miniworks EX is smooth, and fairly fast. Had no problems but have only used it in clear water so far. Seems solid when pumping. Glad I bought it.
Date published: 2021-09-19
Rated 5 out of 5 by from Time tested filter! I’ve had my filter better than 10 years...... I don’t use it but for 1 or 2 canoe trips a year...... most of the problems I see people having in their reviews are directly related to the ceramic filter getting debris on the outside of the filter element, a quick scrub with a brillo pad and a rinse solves all these problems 100% of the time. This might frustrate some, but at least you have the peace of mind in knowing the bad stuff is not getting through. Over all a great product.
Date published: 2021-08-31
Rated 2 out of 5 by from Disappointing I brought this on my last trip. It worked through the recommended flush and about 2 liters of water from a clear alpine lake. After that it had all kinds of issues. Mostly, it would filter half of the pump volume and the rest would blow back down the pick up hose. Other times it just sucked air and never pressurized. I tried lubrication and anything else i thought would work with no luck. I ended up putting it away and using my friends filter. Glad i wasnt somewhere the failure could gotten me in trouble.
Date published: 2021-08-24
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what is the purpose of the red crescent shaped piece from the picture?

Asked by: curious george
When the gage (red crescent shaped piece) can fit around the filter element, the element has been cleaned to the point it needs to be replaced. When the filter is cleaned using the included cleaning pad, the cleaning pad removes bit of the filter element. Eventually the filter element will be reduced to a minimum size for proper effectiveness and will need to be replaced. The gage will allow you to determine when that time has come.
Answered by: bouyscout
Date published: 2020-09-18

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: 2021-11-02

Diameter of threaded bottom of pump? Will this pump fit on a wide mouth nalgene water bottle? Does one need to purchase an MSR bottle or carry bag?

Asked by: Mastercard
Hello! Thank you for reaching out in regard to this item. This pump does fit onto a wide mouth nalgene water bottle! With this being said, purchasing a water bottle is not necessary, and a small carry bag is included with this purchase. Hopefully this helps!
Answered by: Barry B Benson
Date published: 2020-07-25
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