MSR - MiniWorks EX Purifier System

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  • Regular price $179.95

Get the added viral protection that’s critical in popular wilderness areas and developing countries with this comprehensive purifier and microfilter system. The MiniWorks® Microfilter—MSR's best-selling filter for demanding conditions—utilizes a ceramic/carbon element to filter out waterborne bacteria and protozoa, as well as particulate, taste and odors at 1 liter per minute. When viruses are a concern, the chlorine-based Aquatabs® purification tablets add viral defense. Together they provide the most reliable water possible in a compact, lightweight system that’s great for backpacking and international travel.

This system meets U.S. EPA requirements for microbiological water purifiers.


    • Effective Against: Viruses (99.99%), bacteria (99.9999%), protozoa (99.9%) and particulate. Meets U.S. EPA drinking water standards* and NSF protocol P231 testing standard.
    • Iodine-Free: Aquatabs tablets inactivate viruses without bad-tasting iodine. Includes 50 individually packaged tablets. Each tablet treats up to 2 quarts of water depending on conditions.
    • Reliable: Filter’s durable ceramic/carbon element ensures safe, taste-free water—even with frequent, heavy use.
    • Field-maintainable: Filter can be cleaned repeatedly for full flow recovery with no tools required.

*U.S. EPA Guide Standard and Protocol for Testing Microbiological Purifiers



Ideal for Camping and hiking

Filter type

Ceramic filter w/carbon core
Filter media Ceramic plus carbon

Filter pore size

Weight 456g (1 lb)
Width 7 cm (2.75 in)
Length 7.5 in
Height 5.5 in

Cartridge life

Output  1L/min
Flow 85 strokes/L
Dimensions 19 x 7cm

Effective against viruses

Effective against chemicals/toxins Yes

Effective against particulate


Effective against protozoa


Effective against bacteria

Field cleanable and maintainable Yes
Water bottle adapter Yes
Materials Ceramic
Made in USA