MSR Guardian Gravity Water Purifier

4.0 out of 5 star rating (20 reviews)
$299.95 /
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Key Features

  • 10L reservoir covers your daily water needs, from cooking to cleaning to hygiene
  • Purifies 1 liter in just 2 minutes
  • Military-grade durability withstands demanding use and travel
  • Packs down to fit in carry-on luggage and smaller packs
  • Advanced hollow fibers block viruses
  • Activated carbon reduces chemicals and odors for better-tasting water
  • Bottle adapter fits a range of bottle openings

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Get high volumes of purified, virus-free water on-demand virtually anywhere with the MSR® GuardianTM Gravity Purifier. This high-volume gravity system makes it easy to clean water at basecamp, remote villages, or anywhere you need purified water for a group of people. Just hang the 10L reservoir, fill it with water from the sink or river, and let the Advanced Hollow Fiber filter remove viruses (99.99%), bacteria (99.9999%), protozoa (99.9%), sediment and microplastics.

The two-stage purifier also includes activated carbon to reduce unpleasant tastes and odors, so your water tastes delicious with every swig. No backflushing required. Simply opening the purge hose flushes the system to clean it and maintain flow. Originally designed to protect service members in the field, this rugged purifier handles the abuse of travel and meets the NSF P248 military testing standard.

NSF Protocols P231 & P248

Microorganisms in backcountry water can pose an immediate risk to your health. NSF P231 and P248 are the most rigorous scientific standards for proving a device safely removes these microbes from challenging wilderness sources. These standards confirm the device's effectiveness throughout the entire life of its filter. All MSR filters pass P231 for removal of bacteria and protozoa. The GuardianTM Purifiers are the market's only to pass the military standard P248 testing for virus removal.

  • Meets NSF protocol P248 military testing standard for the ultimate viral protection
  • Removes viruses (99.99%), bacteria (99.9999%), protozoa (99.9%), sediment and microplastics from "worst-case" water conditions
  • 2-stage purifier includes activated carbon to give you better tasting water
  • 10L reservoir is easy to fill at sinks and streams alike
  • Simple cleaning and no backflushing required
  • Leading-edge high-flow cartridge system purifies up to 1 liter in 2 minutes
  • Rugged, military-grade construction is engineered for traveling
  • Compact system easily fits in carry-on luggage and smaller packs
  • Meets U.S. EPA standard and protocol for testing microbiological purifiers

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Key Specifications

  • Item Number: 720190
  • Filter Media: Advanced Hollow Fiber
  • Filter Pore Size (microns): 0.02
  • Effective Against: Viruses (99.99%), bacteria (99.9999%), protozoa (99.9%) and particulates
  • Flow): 0.5 liters per min
  • Cartridge life: 3,000+ liters
  • Field maintainable: Yes
  • Cartridge replacement indicator: Yes
  • Dimensions: 4"w. x 12"l. x 4"h.
  • Weight: 1 lb. 3 oz.
  • Country of Origin: Made in the USA of U.S. and imported materials
  • Mfg. Number: 13460
MSR Guardian Gravity Water Purifier
MSR Guardian Gravity Water Purifier
$299.95 /
See Member Price in Checkout
4.1 out of 5 star rating (20 reviews)