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MSR Trailshot Microfilter

MSR Trailshot Microfilter

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Product details

The TrailShot™ Pocket-Sized Water Filter by MSR is small enough to hide in a stash pocket and deploy quickly, allowing the user to easily drink from sources along the trail for easy hydration. One hand and sixty seconds is all that’s needed to filter a liter of water, making this filter an ideal option for fast-paced, high-mileage adventures.

Key Features:

  • Lightweight – At only 5oz, the filter can easily be tucked into a small pocket, taking up little space.

  • Instant Hydration – The long tube allows the user to drink directly from the source, or to refill a hydration reservoir with clean water.

  • EPA Drinking Water Standards – The filter is effective against bacteria (99.9999%), protozoa (99.9%), and particulates (dirt, microplastics). It meets the Environmental Protection Agency (EPA) standards as well as the NSF Protocol P231 testing standard for removal of bacteria and protozoa.

Up to 2,000 L
Filter type
Hulfiber membrane, individually tested. Removes 99.9999% of bacteria like Salmonelle and E.coli and 99.9% of waterborne parasites such as Cryptosporidium and Giardia
Filtration rate
1L / 60 seconds
Hose length
43 cm
6 in / 15.25 cm
1 L / 60 seconds
One Size
5 oz / 142 g
2.4 in / 6.1 cm
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MSR Trailshot Microfilter
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Top reviews
Would an expert recommend this for you?
Jenn L.
Verified camping & hiking expert
Reviewed Mar 18, 2021

Super lightweight (5oz) pump filter. MSR makes very high quality filters. This model is extremely easy to clean, just give it a shake!

Thomas Zalewski
Verified camping & hiking expert
Reviewed May 22, 2021

It's great to attach to your pack directly, saving you from having to fill up a water bottle every time.

Daphne Graf
Verified camping & hiking expert
Reviewed May 10, 2021

Getting that clean H2O without carrying a heavy hydration system.