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MSR Guardian Purifier


MSR Guardian Purifier


Brand: MSR
  EAN 0040818023709
Weight: 490 g         No reviews yet
The MSR Guardian Purifier is the world’s most advanced backcountry purifier. Nothing is safer and easier to use for purifying the most demanding backcountry water sources.

Originally this product was designed for the millitary, but now it is available to global trekkers and backcountry users along with those stocking emergency kits. It offers added viral protection you need when traveling in developing nations and in popular wilderness areas.

This purifier meets NSF protocol P248, testing standard used by U.S. military, for removal of viruses, bacteria, protozoa, and sediment from “worst-case” water conditions and it is engineered to withstand heavy use, freezing, drops, and harsh environments.

The MSR Guardian Purifier is field maintainable and has a self flush system which cleans the filter itself with 10% of the filtered water, which is revolutionary in Ray's opinion. It pumps a rapid 2.5 litres per minute, offering added viral protection without the need for chemicals, bulbs or batteries. Ray particularly recommends this purifier for groups of people travelling together or at base camp due to the high volumes of water that can be purified so quickly.

  • Filter media is made from an advanced medical grade hollow fiber material
  • Filter pore size is 0.02 microns
  • Flow rate 2.5 litres per minute
  • Cartridge life 10,000 + liters
  • Includes a cartridge replacement indicator
  • Extremely durable, engineered to withstand heavy use, freezing temperatuers and harsh environments
  • Drop tested (lab testing 6ft to concrete)
  • Water bottle adapter included
  • Self-cleaning filter
  • Includes travel bag
  • Effective against bacteria, Protozoa and viruses
  • Removes particulates such as sediment, silt and dirt
  • Size: 21 cm x 12 cm
  • Made in the USA

Out of Stock

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  Delivery in 1-2 days within the United Kingdom
  UK Orders placed before 2PM GMT will be dispatched the same working day
  Overseas delivery times will vary depending on the destination

Please note that our offices are closed at weekends, so any orders placed after 2PM GMT on a Friday will not be dispatched until the following Monday.

Orders with a total value over £300.00 will be dispatched free via a next day delivery service within the UK at no extra cost.

Please note that in some instances, orders for heavy items may take an extra day to arrive.

  Overseas deliveries
For overseas deliveries, please refer to the following estimated delivery times:

  • Europe: 3 - 5 working days
  • Rest of the world: 5 - 7 working days


A full refund or exchange will be given provided that the items have not been worn or used, and are returned to us within 30 days of purchase, together with all relative labels and packaging. You are responsible for the cost of returning items.

Please ensure that you include a copy of your invoice, along with an explanation of why you have returned your goods. If you wish to return your goods for any reason, please do so to the following address:

Woodlore Limited
PO Box 3
East Sussex
TN19 7ZE
United Kingdom

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