Pure Water Anywhere, Anytime

Powerful Filtration: The Marathon™ EX carbon/ceramic filter delivers clean, reliable, and taste-free water.
Fast & Efficient: Pumps up to one liter per minute with the innovative AirSpring Accumulator™.
Easy Maintenance: Field-maintainable without any tools, ensuring reliable performance on the go.

The MSR MiniWorks® EX Microfilter is built for serious adventurers who need clean water in demanding environments. Lightweight, compact, and trusted by thousands, it’s your go-to solution for safe hydration on the trail.

TECH SPECS

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.
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 1-liter per minute.
Carbon core removes unpleasant tastes and odors caused by organic compounds, such as iodine, chlorine, and pesticides.
Weight (Standard): 1 lb
Weight (Metric): 0.46 kg
Width (Standard): 2.75 in
Width (Metric): 7 cm
Length (Standard): 7.5 in
Length (Metric): 19 cm
Height (Standard): 5.5 in
Effective against bacteria
Effective against chemicals/toxins
Effective against particulate
Effective against protozoa
NOT Effective against viruses
Filter media: Ceramic Plus Carbon
Filter pore size (microns): 0.2
Flow (L/min): 1 liters per min
Flow (strokes per liter): 85
Cartridge life: 2000 liters
Can be used with Wide Mouth Nalgene water bottles
Cartridge replacement indicator
Material(s): Ceramic
Country of Origin: Made in the U.S.A. of U.S. and Imported Materials

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MiniWorks® EX Microfilter

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