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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.
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
Mountain Safety Research (MSR) is famous for the reliability, practicality and durability of its outdoor adventure gear.
Some of MSR’s enduring designs include revolutionary stoves and cookware, lightweight and versatile tents, shelters for almost any environment, and backpacks with advanced ergonomic designs. All of MSR’s products are designed to cater to the modern adventurer, with functionality, reliability and simplicity built with care into each product.