MSR TrailShot Squeeze Water Filter

The MSR TrailShot is a pocket-sized, squeeze-style water filter designed for fast-paced outdoor activities like trail running, mountain biking, and ultralight backpacking. Weighing just 142 grams (5 ounces), it is compact enough to fit in a pack's stash pocket, ensuring you always have a reliable water source on the move.

Rapid, One-Handed Filtration
The filter features a simple, one-handed operation that requires zero setup. To use it, you simply place the intake hose into a water source and squeeze the pump body. This action filters water at a rapid rate of 1 liter per minute, allowing you to drink directly from the spout or quickly fill a standard water bottle.

Proven Protection Against Microorganisms
The TrailShot uses a durable 0.2-micron hollow fiber filter to remove 99.9999% of bacteria and 99.9% of protozoa, including Giardia and Cryptosporidium, meeting strict US EPA and NSF P231 standards for drinking water. This effectively tackles harmful microorganisms found in lakes, streams, and other natural water sources.

Long Lifespan and Easy Maintenance
Each filter cartridge is built to last, with a total capacity of up to 2,000 liters of water before needing replacement. The filter is also designed for easy field maintenance; if the flow rate slows, a few vigorous shakes can help restore performance without the need for tools.