MSR Guardian™ Water Purifier Pump

The world's most advanced backcountry purifier. 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. It's advanced hollow fiber filter offers the most reliable way to purify even filthy water conditions. Add it's long-lasting performance and revolutionary self-cleaning ease and this may be the only treatment device you'll ever need.

• Fast & Easy: Pumps a rapid 2.5L 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
• 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

• Weight: 1 oz
• Effective Against Bacteria: Yes
• Effective Against Particulate: Yes
• Effective Against Viruses: Yes
• Filter Pore Size (Microns): 0.02
• Cartridge Life: 10,000+ Liters
• Field Maintainable: Yes
• Cartridge Replacement Indicator: Yes
• Dimensions: 8.25" x 4.4"
• Effective Against Protozoa: Yes
• Filter Media: Advanced Hollow Fiber
• Flow (L/Min): 2.5L
• Field Cleanable: Self-Cleaning
• Water Bottle Adapter: Yes
• Material: Hollow Fiber
• Country of Origin: Made in the U.S.A. of U.S. and Imported Materials