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 MSR's workhorse Marathon EX carbon/ceramic element to ensure clean, reliable and taste-free water. 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 has proven reliable by thousands of adventurers.

Reliable: Durable carbon/ceramic element ensures safe, taste-free water—even with frequent, heavy use.
Field-maintainable: Can be cleaned repeatedly for full filter recovery with no tools required.
Fast Flow: AirSpring Accumulator increases filtration speed; up to 1-liter per minute.
Better-tasting Water: Solid activated carbon core removes unpleasant tastes and odors caused by organic compounds, such as iodine, chlorine, and pesticides.