MSR Guardian Water Purifier Pump - Portable Filtration System for Backpacking, Camping & Emergency Preparedness - Removes Bacteria, Viruses & Protozoa from Lakes, Rivers & Streams

Product Description

The MSR Guardian Water Purifier Pump is designed to be the safest, easiest way to purify water. It's engineered to withstand freezing and harsh environments. With its long-lasting performance and revolutionary self-cleaning ease, the Guardian Pump may be the only water treatment device you’ll ever need.

• Stands up to heavy use and extreme environments
• Hollow fibers withstand freezing
• Purifies 2.5 liters per minute from nearly any source and treats up to 10,000 liters.
• Self-cleaning
• Meets NSF protocol P248, testing standard used by U.S. military