*This product can only be shipped within Canada
Nothing is safer or easier to use for purifying the most demanding backcountry water sources than the Guardian purifier. 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.
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 liters 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 backflushing or filter-scrubbing ever required.
Long-Lasting: Leading-edge hollow fiber cartridge treats up to 10,000+ liters.
Extremely Durable: Engineered to withstand heavy use, freezing, drops*, and harsh environments.
*Withstands MSR water lab drop testing: 6 ft. to concrete.
Color
Smoke
Weight (Standard)
1 lbs 1 oz
Weight (Metric)
0.49 kg
Width (Standard)
3 in
Length (Standard)
8.25 in
Height (Standard)
4.5 in
Effective against bacteria
Yes
Effective against particulate
Yes
Effective against protozoa
Yes
Effective against viruses
Yes
Filter media
Advanced Hollow Fiber
Filter pore size (microns)
0.02
Flow (L/min)
2.5 liters per min
Cartridge life
10,000+ liters
Field cleanable
Self-Cleaning
Field maintainable
Yes
Water Bottle Adapter
Yes
Cartridge replacement indicator
Yes
Material(s)
Hollow Fiber
Country of Origin
Made in the U.S.A. of U.S. and Imported Materials
We Believe in What We Build
We know that in the backcountry, reliable gear is critical. That’s why MSR gear has always been engineered to the highest quality standards and rigorously tested before it reaches you.
Seattle Repair Shop
If your MSR gear is in need of repair, please contact our Seattle Repair Shop at 1-800-245-2992 and our technicians will work to find you a solution as quickly as possible. A majority of the time, MSR products can be repaired.
Warranty
If you are experiencing an issue that you feel falls under the MSR Limited Warranty, we’re here to help with that too. Please contact our team to get started.