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MSRGuardian Gravity Water Purifier

MSRGuardian Gravity Water Purifier

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1 out of 5 stars
1 Review

Why We Like The Guardian Gravity Water Purifier

The Guardian Gravity Water Purifier keeps us safely hydrated on our backcountry treks and while traveling abroad. The high-flow system filters up to 1 liter in 2 minutes, providing 10 liters of drinkable water by the time we've figured out where the smell in our hostel dorm is coming from. It's us. The smell is us.


  • High-flow, gravity-powered purifier packs small for backpacking
  • Winner of Backpacker 2021 Editors' Choice Award
  • Filters out bacteria, particulate, viruses, and protozoa
  • Simple cleaning for optimal taste and flow
  • 10L capacity provides all-day hydration for multiple people
  • Durable and effective to meet NSF P248 military testing standards
  • Top opening for easy fill and water bottle adapter for easy refill
  • Cartridge life indicator alerts you when it's time to change it
  • For optimal flow rate, hang the reservoir bag at least 6 ft. above the clean water receptacle
  • Item #MSQ001D

Tech Specs

ultrafiltration hollow fiber, ABS (acrylonitrile butadiene styrene)
Purifying Element
Advanced Hollow Fiber
bacteria, particulate, viruses, protozoa
UF hollow fiber
Pore Size
0.02 micron
Cartridge Life
3000+ L
Field Cleanable
cartridge replacement indicator, water bottle adapter
[height x length x width] 4 x 12 x 4in
Claimed Weight
1lb 3oz
Recommended Use
backpacking, hiking, travel, camping
Manufacturer Warranty
limited 3 years

Overall Rating

1 based on 1 ratings

Review Summary

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1 Stars - 1 reviews

Fits Small

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