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Product description

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.


  • 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 and 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(-), and harsh environments.

    (-)Withstands MSR water lab drop testing: 6 ft. to concrete.


  • Weight: 0.49 kg
  • Width: 11 cm


CategoryWater filters and water purifiers
EAN Code
By STUKS:0040818023709
By STUKS:040818023709
Product code40818023709


5/5 2 reviews
Placed on 18-04-2021

We purchased this to use on our backpacking trips. We also bought some water drops for extra measure. The first time we used this, we also used the drops for one of our bladders. The problem with the drops is you have to wait for them to activate, then wait longer once mixed with the water before you can drink it. On a hot day, this is not so good. The other two of us just used this filter with our water. The filter is easy to use and quick. We filtered 8L for our three bladders in just a few minutes. The water we have filtered has been from mountain streams/creeks, and a lake/pond. No issues from drinking the water without water tablets/drops, and it tastes better than the bottled water we used to get from the stores. Only reminder is to ensure you pump at least 1-2L of water through the filter before drinking it. Otherwise, you get a nasty, kind of sweet tasting water because you haven't flushed the filter cartridge and tubing.

Placed on 18-04-2021

I just used this purifier on a 3 day trek of the Butterfield Trail in the Boston Mountains of Arkansas. I carried two water bottles and filled them from any water source I could find. Depth was not an issue, it works in shallow and deep water. I was confident drinking the water. It was perfectly clear and tasted great. My scout troop uses two on all outings. It has worked as advertised. One of the two with the scout troop does leak, from overtightening??? I hope to continue the excellent results I have attained using the Guardian.

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