Guardian Purifier

Product Information

The MSR Guardian Purifier sets a new standard for backcountry water treatment, offering ultimate protection against waterborne threats. Originally developed for military use, this pump purifier ensures safe drinking water even in the most challenging conditions. It effectively removes viruses, bacteria, protozoa, and sediment, making it ideal for international travel, remote wilderness adventures, or emergency preparedness.

What makes the Guardian truly stand out is its innovative self-cleaning design. With every stroke, 10% of the water flushes contaminants, maintaining a consistently fast flow rate without manual backflushing or scrubbing.

Features

• Advanced hollow fiber filter with 0.02 micron pore size.
• Meets NSF protocol P248, the U.S. military standard for purifying "worst-case" water.
• Self-cleaning on every stroke, eliminating the need for backflushing.
• Extremely durable, engineered to withstand heavy use, freezing, and drops up to 6 feet to concrete.
• Compatible with wide-mouth Nalgene bottles and MSR Dromedary bags.

Specs

• Weight: 1 lb 1 oz (490 g)
• Dimensions: 8.25 x 4.4 in (21 x 11 cm)
• Filter Media: Advanced Hollow Fiber
• Filter Pore Size: 0.02 microns
• Flow Rate: 2.5 liters per minute
• Cartridge Life: 10,000+ liters