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.

Color

	Smoke
Effective against protozoa	Yes
Effective against bacteria	Yes
Effective against particulate	Yes
Effective against chemicals/toxins	No
Effective against viruses	Yes
Weight	1 lbs 1.3 oz / 490 g
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
Country of Origin	Made in the U.S.A. of U.S. and Imported Materials

WARNING: California Proposition 65 Warning. Warning: Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Reviews

MSR Guardian Purifier