MSR MiniWorks EX Water Filter
Proven reliable by thousands of adventurers around the world, the MSR MiniWorks EX water filter has a compact size that makes it ideal for backpacking or travels when you want to keep things light.
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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 (bag and water bottle not included)
- Easy disassembly lets you troubleshoot and maintain the filter in the field
Made in USA.
| Best Use | Backpacking |
|---|---|
| Filter Type | Pump |
| Filter Medium | Ceramic with carbon core |
| Removes/Destroys | Protozoa And Bacteria |
| Pump Force | 10.4 pounds |
| Pump Strokes per Liter | 85 |
| Output | 1 liter per minute |
| Housing Material | Polyurethane |
| BPA Free | Yes |
| Field Cleanable | Yes |
| Dimensions | 7.8 x 3.8 inches |
| Weight | 14.6 ounces |
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MSR - Great Filter for long haul / remote hiking
I have had 2 MSR filters for over 8 years, (purchased 2nd due to a great sale I couldn’t pass up) . I have used these filters primarily in desert settings, Big Bend National Park multiple years, 4 rim to rim trips across the Grand Canyon, Mt St Helen’s , Colorado, Missouri, Arkansas Etc…. I don’t go anywhere without one. Hey have been “nearly” maintenance free, and have never failed to provide clean water (many trips to multiple other hikers needing water). If you’re going out where obtaining ground water will be required - you MUST have a reliable and long lasting filter - this is one of 5em and highly recommend !!!!
Perfect!
I have had and used this filter extensively while backpacking over the last 25 years (yes, I still use the original one). It has provided a family of four with enough clean water for drinking and cooking, during weeks at a time. It is slower when the water is murky, but it still works, and when too pluggeg, it can be cleaned on site. I gave my brother one when he started backpacking and it was very hard to pump, so he followed the instructions to take it apart and back together, and it worked perfectly after, so try that if needed ;-) Just carefully follow the cleaning and maintenance instructions, and you’ll pass this down to your grandchildren!
Great filter
I purchased this filter back in 2011 or 2012. I was introduced to them in Boy Scouts (as a leader) and purchased one for my own and family backpacking treks. I still use the original filter and cartridge although considering replacing the ceramic cartridge. I'm sure I have surpassed the 2000 liter mark by now. I have never had a problem with my filter. I drain and clean it after every trek. During treks if I filter murky water, I do clean it the best that I can in the backcountry and dry it out. I recommend this model to my clients. I have had issues with other brand filters clogging and being tricky to use, especially in low flowing water sources, but not with this filter. It's great for small group filtering.
I have a vintage SweetWater Micro Filter
I bought this likely 30+ years ago, the pump has a PN# 32-788, it has ben dry stored all this time. It has only been used once. Can I recondition the filter as per instructions (16-24 hours in 1oz/1ltr bleach solution) or has this filter reached its use by date? If it needs to be replaced, can you direct me the correct model number of the replacement filter to order. I now live in New Zealand, and if you recommend a NZ supplier, that would be a bonus. Thank you
Filter Frequence
Just received my MSR filter for my expedition next week, looks great and durable. I only have a question about the filtration speed; the description tells 1 liter per minute. When I tested the filter after the first cleaning I only got 200-300ml per minute, maintaining the pumping frequence of 60-70 strokes a minute. Am I doing something wrong, or is this normal when using the filter for the first time?
Do not purchase
This is the absolute worst water filter you can ever purchase. It does not work and will leave you stranded for clean water when you actually need it. It's not just a waste of money, but the part that gets me angry is that a faulty water filter is dangerous and a health risk. I followed the pre - use instructions to set up the filter prior to the trip and tested it with tap water at home. We brought it with us on our thru - hike on Vancouver island and used it to filter out clear, tarn water that was not particularly cold (not a glacial tarn with an iceberg still floating on it) that was free of bugs and debris. It stopped working after day 1. The water was pumping into the filter just fine but the filter cartilage was not working at all and no filtered water was flowing out. Yes, the covering for the spout was taken off first. This is the second time it happened. I had tested it out on a day hike a few months prior and the same problem happened. I had sent it back to MSR to get it fixed. It was sent back to me without any note or explanation of what went wrong / what was fixed, which led me to think that nothing was done to it whatsoever. So I am weary of the warranty. So of the two trips I used it on, it failed me both times. And for reference, I've only used this water filter twice (not a wear and tear / volume issue).