MSR TrailShot Water Filter

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Clean water all day - without the weight! 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 liter in a mere 60 seconds. Weighs 5oz.

  • 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 142 g (5 oz.) 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-liter bottles in 60 seconds.
  • Simple to Clean: A few shakes helps restore flow rates in the field; no tools required.
  • *U.S. EPA Guide Standard and Protocol for Testing Microbiological Purifiers



Average rating: based on 2 reviews.

easy to use and carry


Reviewed By: Bruce Schultz on 1/15/21

Nothing to come apart or put together. SImple and doesn't require much force to push water thru the filter.

Awesome filter!


Reviewed By: Jamie on 2/27/20

Have used it multiple times on backpacking, bike packing and a tour in Costa Rica this fall filtering very questionable looking water. Never got a sick, super lightweight and easy to use!

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