MSR Guardian Filter Replacement Cartridge


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Rocksolid guarantee

Shop with confidence. If it’s not working out, you can return it (consumables, electronics, undergarments and swimwear excluded).
Really. If it's not up to snuff after you use it (a couple times) you can still bring it back. It lasts longer than 30 days, but not forever. We'll be fair about it.


Replace the purifier cartridge on your MSR Guardian Filter, or just carry one as a back up.

  • Removes viruses, bacteria, and protozoa
  • Comes with clean side cover
  • Hollow fiber filter removing bacteria and protozoa
  • Note: the quality of water will significantly affect the filter's 10000 liter life

Tech specs

Ideal for
  • Camping and hiking
  • Backpacking
  • Travel
Made inUSA

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3 out of 5 stars with 2 reviews for MSR Guardian Filter Replacement Cartridge

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