Now multi-activity backcountry adventurers can get a variety of water filtration needs met with one great system. Ultra-versatile MSR® Trail Base^TM Water Filter System gives you 3 filtration options. Use it as a gravity filter for larger groups, or quickly convert it into a smaller filter for the trail. It also converts into a fast-and-light reservoir for carrying clean water with you. Whether you’re hiking, biking or basecamping, the Trail Base Water Filter offers incredible flexibility to adapt to any adventure.

• Modular components easily transform from a 2L gravity system into a small trail filter
• Ultralight clean water reservoir has 3-in-1 cap for easy filling, drinking, and pouring
• Hollow fiber technology removes waterborne pathogenic bacteria, protozoa, and particulates from fresh water sources
• Meets U.S. EPA drinking water standards and NSF protocol P231 testing standard
• Note: This filter does not remove viruses

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Key Specifications