MSR Trail Base Water Filter 4 L

To meet the needs of backcountry adventurers, MSR set out to create the most versatile water filter ever. The features modular components that allow it to be used as a gravity system in camp, a pocket filter on the trail, or a lightweight water supply on the go. Whether you’re hiking, biking, or camping, the Trail Base water filter kit offers incredible flexibility and options that make it the only filter system that truly adapts to your adventure and the filtration task at hand.

Features of the MSR Trail Base water filter

• Bacteria (99.9999%), protozoa (99.9%) and particulates. Hollow fiber filter meets U.S. EPA drinking water standards* and NSF P231 testing standard.
• Modular components allow the system to be quickly and easily converted from a 4-liter gravity system to a small afterflow filter and back.
• The afterflow filter simply plugs into the gravity system to form the complete gravity filter system.
• Includes ultra-lightweight, durable drinking water reservoir that features MSR’s 3-in-1 cap for easy filling, drinking and pouring.

*U.S. EPA Guide standard and protocol for testing microbiological water filters.