MSR Guardian Purifier

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Introducing the world's most advanced portable purifier: the Guardian. Co-developed with the US military, it's been designed to be the safest, easiest way to purify water - wherever you are in the world.

With a Hollow Fibre cartridge it removes viruses, protozoa, bacteria and sediment from even the dirtiest water. On each stroke the purifier uses 10% of its water to flush the contaminants from its filter, ensuring a fast flow rate regardless of water conditions. Fast, durable and long-lasting, it will treat 10,000+ litres of water, purifying 2.5 litres per minute without need for chemicals or batteries.

With a rugged construction, small pack size and weighing less than 500 grams, it's an exceptional choice for international travel, long-distance backpacking trips and expedition use.

  • MSR Guardian Purifier
  • Compatible with most standard 'wide-mouth' water bottles
  • Storage sack
  • Instruction manual
  • Filtration method: 0.02 micron Hollow Fibre Cartridge
  • Effective against: Protozoa, bacteria, viruses and particulate
  • Output: approx. 2.5 litres per minute
  • Cartridge capacity: 10,000+ litres
  • Weight: 490g

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