MSR Guardian Gravity Purifier

$359 $372

Only 1 piece in stock!


MSR Guardian Gravity Purifier

This is the worlds most advanced gravity purifier with state of the art virus protection.

This easy to use filtration system will provide safe water around the world, removing viruses, bacteria, protozoa, sediment and microplastics hands-free. Simply fill with water, hang up and then get on with your day at the hostel, basecamp or campsite—its 10L reservoir supports the daily water needs of multiple people.

Designed for military use, this rugged purifier handles the abuse of travel and meets the NSF P248 military testing standard.

Ultimate Virus Protection: Meets NSF protocol P248 military testing standard for removing viruses (99.99%), bacteria (99.9999%), protozoa (99.9%), sediment and microplastics from “worst-case” water conditions.

Better-Tasting Water: Two-stage purifier includes activated carbon to reduce chemicals and unpleasant tastes and odors.

Easy to Fill: 10 -liter reservoir is easy to fill at sinks and streams alike; covers daily water needs for drinking, cooking and hygiene.

Simple Cleaning: No backflushing required—simply opening the purge hose flushes the system to clean it and maintain flow rate

Fast-Flow Rate: Up to 1 liter in 2 minutes with optimal reservoir hang height of 6 feet, 2.5x faster than the next leading gravity purifier.

Engineered for Travel: Rugged, military-grade construction. Compact system fits easily in carry-on luggage and smaller packs.

NSF P248 Testing Standard: The most rigorous scientific certification for proving a treatment device safely removes claimed contaminants from challenging wilderness water sources. Guardian devices are the market’s only purifiers to pass the military standard P248 testing for virus removal

Easy-To-Use: Attaches to Dromedary Bags, Alpine Bottle, and other widemouth bottles.

*Meets U.S. EPA Guide Standard and Protocol for Testing Microbiological Purifiers

Made in the USA of US and Imported materials

  • Weight: 530g
  • Dimensions: 100 x 100 x 300 mm (when stowed)
  • Effective against particulate
  • Effective against bacteria
  • Effective against protozoa
  • Effective against viruses
  • Advanced Hollow Fibre media
  • Filter pore size (microns): 0.2 Flow (L/min): 500ml per min
  • Cartridge life: 3000 litres
  • Field cleanable
  • Field maintainable
  • Cartridge replacement indicator