MSR (Cascade Designs) Guardian Gravity Purifier

Utilizing advanced technologies from the original Guardian purifier, this gravity-powered version has you covered from remote villages to your local trails. A 10L reservoir supports the daily water needs of multiple people and is rugged enough to handle travel abuse.

Features:

• Meets NSF protocol P248 military testing standard for removing viruses (99.99%), bacteria (99.9999%), protozoa (99.9%), sediment and microplastics
• Two-stage purifier
• 10 liter reservoir is easy to fill
• No backflushing required
• Leading-edge cartridge creates a fast virus-stopping gravity system up to 1 liter in 2 minutes
• Rugged, military-grade construction
• For optimal flow rate, hang the reservoir bag at least 6 ft. above the clean water receptacle