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MSRHyperFlow Microfilter

MSRHyperFlow Microfilter

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3.5 out of 5 stars
65 Reviews

HyperFlow Microfilter

Pumping three liters per minute, the MSR HyperFlow Microfilter provides fast and dependable water purification—all the while weighing in just over seven ounces. That means you can pack quick-filtering power without sacrificing weight or space on your fast-pace backpacking trips. The Hyperflow Microfilter's float end stays face-down in the lake or stream and won't clog up as you pump, and an included Quick Connect Bottle Adapter connects to MSR, Nalgene, and other bottles with 63mm threaded openings. And, more importantly, no tools are needed to disassemble the Hyperflow Microfileter for on-the-go cleaning.


  • A lightweight, adaptive water filter for backpacking
  • Hollow Fiber technology meets NSF protocol P23l
  • Pumps three liters per minute
  • Low-profile design lends easy packability
  • Can be cleaned without tools
  • Item #CAS0471

Tech Specs

protozoa, bacteria, particulate
Hollow Fiber
Cartridge Life
1000 L
3L / minute (1 L / 20 strokes)
Field Cleanable
Quick Connect bottle adapter
3.5 in x 7 in
Claimed Weight
7.8 oz
Recommended Use
backpacking, camping
Manufacturer Warranty
limited 3 years

Overall Rating

3 based on 65 ratings

Review Summary

5 Stars - 17 reviews
4 Stars - 23 reviews
3 Stars - 5 reviews
2 Stars - 9 reviews
1 Stars - 11 reviews

Fits True To Size

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Runs smallTrue to sizeRuns large

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