Therm-a-Rest® - Sleeping Pads, Bags & Outdoor Comfort

MiniWorks® EX Purifier System

MiniWorks® EX Purifier System - Main image
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$92.77 $144.95 In stock

Our most versatile and comprehensive water treatment system, the MiniWorks® EX Purifier System from MSR is designed to deliver reliable performance for outdoor adventures.

  • Versatile purification system suitable for a wide range of water sources.
  • Comprehensive treatment to help ensure safe drinking water in the backcountry.
  • Built with the trusted quality of MSR, a leader in outdoor water purification.
  • Compact and practical design for easy packing and use on the trail.
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Owen ★★★★★

Took this on a week-long backpacking trip and the output speed surprised me, treated water for the whole group without needing a break. The filter never clogged even after dipping into some murky streams.

Owen ★★★★★

Took this on a week-long trip and the pump handled everything I threw at it, from clear lake water to suspect stream sources. It's compact enough to strap to my pack without noticing, and the flow rate meant I wasn't standing around forever. Honestly, this is the most dependable filter system I've o

Nicholas ★★★★★

Pumped water straight from a muddy stream and it came out crystal clear, the pump mechanism felt smooth and didn't tire my hand out even after filling my whole 3-liter bag. This thing is the last water filter I'll ever need to buy for my trips.