MSR Guardian Water Purifier for Backcountry Use, Global Travel, and Emergency Preparedness
$399.95
Why we picked this
Product Details
The MSR Guardian Water Purifier is designed for backcountry use, global travel, and emergency preparedness. This military-grade water purifier effectively removes viruses, bacteria, protozoa, and particulate from contaminated water sources. It meets the NSF protocol P248 testing standard of the U.S. military, ensuring reliable protection against waterborne threats.
With a rapid pumping rate of 2.5 liters per minute, it can treat up to 10,000 liters of water. The self-cleaning feature eliminates the need for backflushing or filter-scrubbing, making it user-friendly. The included storage bag is PFAS-free, promoting environmental safety while keeping your gear dry.
- Pumps at 2.5 liters per minute
- Treats up to 10,000 liters
- Self-cleans with every stroke
- Includes a PFAS-free storage bag
Pros & Cons
- Military-grade protection against waterborne threats
- Rapid pumping rate of 2.5 liters per minute
- Self-cleaning feature for hassle-free use
- Lightweight and portable design, weighing only 17.3 ounces
- Higher price point compared to basic filters
- Requires manual pumping, which may be tiring
- Limited to treating water from contaminated sources only
$399.95








