MSR Trailshot Pocket-Sized Water Filter


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The smartest solution to clean water on fast-paced adventures.

Clean water all day—without the weight. That’s the advantage the TrailShot Microfilter provides. Designed to hide in stash pockets and deploy quickly, this tiny water filter lets you drink directly from sources along the trail for instant hydration, and fill your vessels with clean water. Easy one-handed operation filters one litre in a mere 60 seconds, so you can get back on the trail quickly and moving again. At just 142g, the TrailShot water filter is the ultimate filter for fast-paced, high-mileage adventurers, like trail runners, hikers, fast-packers and mountain bikers.

  • Tested: Meets U.S. EPA drinking water standards* and NSF protocol P231 for removal of bacteria (99.9999%), protozoa (99.9%), and particulates.

  • Pocket-Sized & Light: Like small water bottles, energy chews, mini bike pumps, and tubes, this 142g filter disappears in stash pockets.

  • Instant Hydration: Drink directly from the source—without lying in the dirt—and refill your bottles or hydration reservoir with clean water.

  • Quick-Deploy: Zero set-up and simple one-handed operation fills 1-litre bottles in 60 seconds.

  • Simple to Clean: A few shakes helps restore flow rates in the field; no tools required.

  • Specifications

    Weight - 142g

    Effective Against Bacteria - Yes

    Effective Against Chemicals/Toxins - No

    Effective Against Particulate - Yes

    Effective Against Protozoa - Yes

    Effective Against Viruses - No

    Filter - Advanced Hollow Fibre

    Filter Pore Size (microns) - 0.2

    Flow (L/min) - 1L per min

    Flow (Stroke per Litre) - 60

    Cartridge Life - 2000 Litres

    Field Maintainable - Yes

    Water Bottle Adaptor - No

    Cartridge Replacement Indicator - Yes