MSR Guardian Water Purifier


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MSR Guardian - The worlds most advanced water purifier. Nothing is safer or easier to use when it comes to purifying the most demanding backcountry water sources.

Originally designed for military squads, it brings this highly advanced technology to global travellers, 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. The Guardians advanced hollow fiber filter offers the most reliable way to purify even the filthiest water sources. Add its long-lasting performance and revolutionary self-cleaning ease, and this will be the only treatment device you will ever need.

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