MSR MiniWorks EX Water Purifier System



MSR MiniWorks EX Water Purifier System

Item # 56431

Get critical viral protection in wilderness areas and developing countries with the MSR MiniWorks EX purifier system. This comprehensive purifier and microfilter sytem is a best-seller for demanding conditions. The MiniWorks is compact and lightweight, great for backpacking and international travel.

  • Meets US EPA requirements for microbiological water purifiers
  • Effective against viruses (99.99%), bacteria (99.9999%), protozoa (99.9%) and particulates
  • Meets U.S. EPA drinking water standards and NSF protocol P231 testing standard
  • Durable ceramic/carbon element ensures safe, taste-free water even with frequent, heavy use
  • Chlorine-based Aquatabs tablets inactivate viruses without bad-tasting iodine
  • Field-maintainable filter can be cleaned repeatedly for full flow recovery with no tools required
  • Easily attaches to Dromeday bags plus Alpine & many other wide-mouth bottles
  • Made in the USA of US and imported materials
  • 3-year manufacturer warranty against defects in materials and workmanship

Technical Specifications

Filter MaterialCeramic Carbon Plus
Filter Lifeup to 2000 liters
Flow Rate1 liter per minute
Stroke Rate85 per liter
Dimensions7.5" T x 2.75" W
Weight1 lb.


  • 1 MiniWorks EX Microfilter
  • 50 Aquatabs purification tablets (treats up to 95 liters)

MSR MiniWorks EX Owner's Manual


Warranty & Returns & Prop 65 Info

Easy Returns - Money Back Guarantee

Outdoorplay has a very consumer-focused new/unopened return policy. If you are not 100% satisfied with what you have purchased from Outdoorplay, return it within 60 days of purchase and take advantage of our amazing no-hassle money back guarantee. We'll refund you the product price on any returned item(s). You'll never regret your purchase with Outdoorplay. We've got you covered.

Note: We do not accept returns on used products. All returns must be in original packaging with original hang tags. Otherwise a restocking fee may apply.


All of the products we carry are from the top name brands in the industry and come with a full manufacturer warranty covering any and all product defects. If you have any questions about the warranty on a given product, give us a call at 1-800-994-4327.

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