MSR Guardian Water Purifier Pump

Weighs 490g
Code: SS16793
  • Now £264.99
  • (FREE UK & EU Delivery)
  • RRP £294.99
  • |
  • Save: £30.00 (10%)
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The MSR Guardian Purifier Pump is the world's most advanced backcountry purifier, designed to to be the safest and easiest way to purify water anywhere on earth. 

MSR says: 

Nothing is safer or easier to use for purifying the most demanding backcountry water sources than the Guardian purifier. Originally designed for military squads, it brings this highly advanced technology to global travelers, backcountry users, and those stocking emergency kits.

Fast and easy to use, this pump purifier offers the added viral protection you need when traveling in developing nations and popular wilderness areas. Its advanced hollow fiber filter offers the most reliable way to purify even filthy water conditions. Add its long-lasting performance and revolutionary self-cleaning ease, and this may be the only treatment device you’ll ever need.

The Guardian Purifier Pump is the first mechanical filter that removes viruses, bacteria, protozoa, dirt and other particles all at once and is the first filter to integrate a self-cleaning design too. I like all this in one devices! It’s easy to use, reassuringly robust, and maintenance-free; all extremely useful for travellers and wilderness explorers. Plus it packs away to the size of a Nalgene bottle, pretty nifty!

It's rugged design has been built to withstand heavy use, freezing temperatures, drops and harsh environments. The fact that you can use it to obtain clean water from just about any source is amazing, but at a little under £300 and weighing a substantial 490g, it is a heavier and pricier than other filters on the market. But the fact the cartridge is long lasting, treating up to 10,000L of water, it could work out cost effective in the long run.

If you want the best - here it is, though it comes at a price in both cash terms and weight carried, but if you're heading off to an area where you are likely to use it a lot - its going to be worth the investment.

- Reviewed by Ultralight Outdoor Gear

Read reviews here:      
  • Ultimate Protection: Meets NSF protocol P248, testing standard used by U.S. military, for removal of viruses, bacteria, protozoa, and sediment from “worst-case” water conditions.
  • Fast & Easy: Pumps a rapid 2.5 liters per minute, offering added viral protection without the need for chemicals, bulbs, batteries, or waiting.
  • Self-Cleaning: Pump self-cleans on every stroke, providing consistently fast flow rates with zero hassle—no backflushing or filter-scrubbing ever required.
  • Long-Lasting: Leading-edge hollow fiber cartridge treats up to 10,000+ liters.
  • Extremely Durable: Engineered to withstand heavy use, freezing, drops (withstands MSR water lab drop testing: 6 ft. to concrete), and harsh environments.
  • Download Guardian Purifier Pump Instructions [PDF]
  • Effective against protozoa: Yes
  • Effective against bacteria: Yes
  • Effective against chemicals/toxins: No
  • Effective against viruses: Yes
  • Filter pore size (microns): 0.02
  • Cartridge life: 10,000+ liters
  • Filter media: Advanced Hollow Fiber
  • Flow (L/min): 2.5 liters per min
  • Field cleanable: Self-Cleaning
  • Field maintainable: Yes
  • Water Bottle Adapter: Yes
  • Cartridge replacement indicator: Yes
  • Weight: 490g
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