MSR Guardian Water Purifier

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The MSR Guardian Water Purifier is the safest and sturdy water purifier ever produced. Originally designed for military squads, it brings this highly advanced technology to global travelers, backcountry users, and those stocking emergency kits. Fast and easy to use, this pump purifier offers the added viral protection you need when traveling in developing nations and popular wilderness areas. Its advanced hollow fiber filter offers the most reliable way to purify even filthy water conditions. Add its long-lasting performance and revolutionary self-cleaning ease, and this may be the only treatment device you’ll ever need.

  • Meets NSF protocol P248, testing standard used by U.S. military, for removal of viruses, bacteria, protozoa, and sediment from “worst-case” water conditions.
  • Pumps a rapid 2.5 liters per minute, offering added viral protection without the need for chemicals, bulbs, batteries, or waiting
  • Pump self-cleans on every stroke, providing consistently fast flow rates with zero hassle
  • no backflushing or filter-scrubbing ever required.
  • Leading-edge hollow fiber cartridge treats up to 10,000+ liters.
  • Engineered to withstand heavy use, freezing, drops*, and harsh environments.