The MSR Guardian is the world’s most advanced portable water purifier. The MSR Guardian is the perfect purifier for the international traveler, backpacker or emergency prepper.
Removes viruses, bacteria, protozoa and dirt
Physically removes pathogens and particulates
Single step purification for all water types (clear, turbid, filthy)
Output: 2.5L per minute
Treats up to 10,000L
Hollow fibre technology