The MiniWorks® EX microfilter is the worldwide best-selling microfilter. It delivers long-lasting, field-maintainable water filtration in demanding environments.
Engineered for frequent and heavy use, it utilizes MSR’s® workhorse Marathon EX carbon / ceramic element to ensure clean, reliable and taste-free water.
Thanks to its innovative AirSpring Accumulator, it’s capable of pumping one liter per minute and the flow rate can be renewed easily and repeatedly in the field – no tools required.
It’s lightweight and compact and, most importantly, been proven reliable by thousands of adventurers just like you.
- Effective against protozoa, bacteria, viruses, particulate, and toxins
- Durable carbon / ceramic element ensures safe, taste-free water – even with frequent, heavy use
- Can be cleaned repeatedly for full filter recovery with no tools required
- AirSpring Accumulator increases filtration speed; up to one liter per minute
- Carbon core removes unpleasant tastes and odors caused by organic compounds, such as iodine, chlorine, and pesticides
- 0.2 microns filter pores
- Cartridge replacement indicator
- Water bottle adapter included
- Strokes per liter: 85
- Dimensions: 2.75″ x 7.5″
- Weight: 1 lb.
- Made in USA







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