MSR Guardian Purifier

The MSR Guardian is the most advanced portable water purifier available. It is the only pump purifier that meets NSF P248 military standard, physically removing viruses, bacteria, protozoa, and particulate.

Key Features

• Meets NSF P248 military purification standard
• Physically removes viruses — no chemicals needed
• 2.5 liters per minute flow rate
• Self-cleaning technology — never needs backflushing
• Cartridge lasts 10,000+ liters
• Withstands freezing without damage
• The ultimate survival water purifier