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MiniWorks® EX Purifier System

by MSR

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Our most versatile and comprehensive water treatment system.

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—our 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. 


Learn more about Prop 65

  • 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
Weight: 1 lb
Width: 2.75 in
Length: 7.5 in

Height: 5.5 in
Effective against bacteria:Yes

Effective against chemicals/toxins:Yes
Effective against particulate:Yes

Effective against protozoa:Yes
Effective against viruses:Yes

Filter media:Ceramic Plus Carbon
Filter pore size (microns):0.2

Flow (L/min):1 liters per min
Flow (strokes per liter):85

Field cleanable:Yes
Field maintainable:Yes

Water Bottle Adapter:Yes

Country of Origin:Made in the U.S.A. of U.S. and Imported Materials