MSR Guardian Water Purifier Pump
Best high-capacity purifier for backcountry explorers and emergency preparedness.
This pump-style purifier is the gold standard for backcountry safety, handling even the filthiest water sources with ease. Its self-cleaning design eliminates the hassle of maintenance, while the high-capacity filter ensures long-term reliability for serious travelers and emergency kits.
$199.98
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Who it's for
- Adventurers traveling in regions with high viral water contamination risks
- Backpackers wanting low-maintenance gear that cleans itself during use
- Expedition leaders needing reliable, high-volume water filtration for groups
Who should skip it
- Budget-conscious hikers seeking affordable water treatment solutions
- Ultralight backpackers prioritizing minimal pack weight and size
- Casual campers looking for low long-term maintenance costs
Performance breakdown
Filtration efficacy
NSF P248 certification ensures complete removal of viruses and pathogens.
Flow rate
Rapid 2.5 liters per minute output keeps groups hydrated efficiently.
Durability
Rugged construction survives drops and freezing temperatures without compromising integrity.
Maintenance ease
Self-cleaning mechanism eliminates the tedious chore of manual backflushing.
Filter longevity
Massive 10,000-liter capacity outlasts almost any other portable pump.
Portability
Robust build adds weight, making it better for expeditions than ultralight.
Key Specs
Weight
0.49 kg
Dimensions
3 in x 8.25 in x 4.5 in
Filter Media
Hollow Fiber
Micron Rating
0.02 microns
Flow Rate
2.5 liters per minute
Capacity
10,000 liters
Certification
NSF protocol P248, U.S. EPA drinking water standards
Backwashable
No
Power Source
Manual
Number of Filtration Stages
1
Know before you buy
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Ask Metto anything about the MSR Guardian Water Purifier Pump before you decide.
