MSR MiniWorks EX Water Filter
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In 1969, Seattle engineer and lifelong mountaineer Larry Penberthy formed Mountain Safety Research as a one-man crusade dedicated to improving the safety of climbing equipment. The fuel behind Larry's passionate fire was a simple belief that still drives our team today: The idea that better, safer, more reliable equipment is the key to unlocking greater adventures. MSR has strong perspectives on how a product should work based on their own experiences in the wild places they love. They believe that innovative solutions are bred by challenging convention, and that functionality, simplicity and reliability are the governing elements of enduring design.
This Microfilter from MSR is a great companion when hiking and camping where clean water is hard to come by. Its reliability makes it hard to beat as well as being both lightweight and compact.
The MiniWorks EX microfilter is the worldwide best-selling microfilter, delivering long-lasting, field-maintainable water filtration in demanding environments. Engineered for frequent and heavy use, it utilizes our workhorse Marathon EX carbon/ceramic element to ensure clean, reliable and taste-free water. Thanks to its innovative AirSpring Accumulator, its capable of pumping one liter per minute and the flow rate can be renewed easily and repeatedly in the field, no tools required. 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.
Its lightweight and compact and, most importantly, been proven reliable by thousands of adventurers just like you.
- Durable carbon/ceramic element ensures safe, taste-free water”even with frequent, heavy use.
- 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: Yes
Effective against bacteria: Yes
Effective against viruses: No
Effective against particulate: Yes
Effective against chemicals/toxins: Yes
Weight: 1 lb / 456 g
Width: 2.75 in / 7 cm
Length: 7.5 in / 19 cm
Filter media: Ceramic Plus Carbon
Filter pore size: 0.2 microns
Flow (L/min): 1 liters per min
Flow (strokes per liter): 85
Cartridge life: ~2000 liters
Field cleanable: Yes
Field maintainable: Yes
Cartridge replacement indicator: Yes
The MSR MiniWorks EX Water Filter is covered by the MSR 3 Year Manufacturer's Warranty
Reviews of MSR MiniWorks EX Water Filter
MSR MiniWorks EX Water Filter(5) By: Reynold Lanyon on 9 October 2018I have been using this filter for over 16 years without fault. Five stays in Nepal, also Cambodia and Vietnam. Every morning I filter about four litres of water and have not been sick once in any of these countries. I am still using the original filter. It is an absolute life saver and I have recommended it to many people.