"What Our Gearhead® Experts Are Saying:""I've taken the Guardian on expeditions where water quality is genuinely questionable — glacial runoff, river crossings in remote terrain, and international travel — and it has never let me down. The self-cleaning design keeps the flow rate consistent without any extra effort, and knowing it handles viruses puts my mind at ease in a way that a standard microfilter doesn't.""Most water filters handle the common threats. The MSR Guardian Purifier System handles all of them. With a 0. 02-micron hollow fiber filter, it eliminates protozoa, bacteria, viruses, and particulate — the full spectrum of waterborne risk — making it the right tool for international travel, high-use water sources, and any situation where the stakes are too high for a standard microfilter. At 2. 5 liters per minute, it moves fast for a purifier, and the self-cleaning design maintains that flow rate in the field without manual intervention. A cartridge replacement indicator takes the guesswork out of filter life, and a rated lifespan of 10,000+ liters means this system will outlast seasons of heavy use without needing a replacement. When clean water is non-negotiable, the Guardian is the answer."
Price: $399.95 from Backcountry
| Merchant | Price | |
|---|---|---|
| $399.95 | Visit Store |
The Guardian Gravity Purifier has you covered with safe water around the world, removing viruses, bacteria, protozoa, sediment and microplastics hands-free. Simply hang it while you go about your tasks at the hostel, basecamp or campsite—its 10L reservoir...
We love our MSR Guardian Gravity Water Purifier so much that we have filtered more than 3,000 liters of water. Instead of tossing out our trusty tool we just pop in a Guardian Gravity Water Purifier Replacement Filter and head back into the wilderness...
