MSR Guardian Purifier Pump
THE WORLD’S MOST ADVANCED PURIFIER FOR CLEAN WATER IN REMOTE ADVENTURES
- 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.
- Fast & Easy: Pumps a rapid 2.5 litres 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 fibre cartridge treats up to 10,000+ litres.
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Extremely Durable: Engineered to withstand heavy use, freezing, drops*, and harsh environments.
*Withstands MSR water lab drop testing: 6 ft. to concrete.
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Specifications
Weight (Metric):
0.49 kg
Width (Standard):
3 in
Length (Standard):
8.25 in
Height (Standard):
4.5 in
Effective against bacteria:
Yes
Effective against chemicals/toxins:
No
Effective against particulate:
Yes
Effective against protozoa:
Yes
Effective against viruses:
Yes
Filter media:
Advanced Hollow Fibre
Filter pore size (microns):
0.02
Flow (L/min):
2.5 litres per min
Cartridge life:
10,000+ liters
Field cleanable:
Self-Cleaning
Field maintainable:
Yes
Water Bottle Adapter:
Yes
Cartridge replacement indicator:
Yes -
Weight
490 g

"The Valley and Peak promise is built on three pillars: thoughtfully curated gear, exceptional customer service, and a genuine love for the outdoors. As an independent, family-run business, we carefully select products from a wide variety of cottage gear brands and trusted names, ensuring that each item is rigorously tested and loved by our team. Our customer service is a cornerstone of our brand, offering personalised support to help you choose and care for your gear with confidence"
Jim De'Ath, Managing Director