The MSR Guardian Water Purifier is a high-performance water filtration system designed for outdoor enthusiasts who demand the best.
Using advanced technology, this purifier removes 99.9999% of bacteria, 99.9% of protozoa, and even viruses, ensuring that you have safe, clean drinking water no matter where you are. Its durable construction can withstand the toughest environments, making it ideal for backpacking, camping, and other outdoor adventures.
With a fast flow rate, easy maintenance, and long-lasting filter, the MSR Guardian Water Purifier is a must-have for anyone who values safe and reliable drinking water while on the go.
Military-grade water purifier pump removes viruses, bacteria, protozoa, and particulate from contaminated water sources virtually anywhere on earth
Meets NSF protocol P248 testing standard of the U.S. military, using medical-grade fibers to provide protection from the tiniest waterborne threats
Pumps at a rapid 2.5 liters per minute, treats up to 10,000 liters of water, and withstands freezing, drops, heavy use, and harsh environments
Pump self-cleans on every stroke, providing consistently fast flow rates with zero hassle—no backflushing or filter-scrubbing ever required
Ideal for backcountry, expeditions, global travel, and survival; purifier pump measures 8.2 x 4.7 inches and weighs 17.3 ounces; made in the USA