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MSR Trail Base Water Filter Kit

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To meet the needs of multi-activity backcountry adventurers, we set out to engineer the most versatile water filter ever. The Trail Base microfilter kit features modular components that allow it to be used as a gravity system at camp, a pocket-sized filter on the trail, or a fast-and-light reservoir when you need to carry clean water with you. Whether you’re hiking, biking or basecamping, the Trail Base water filter kit offers incredible flexibility and options, making it the one filter that truly adapts to your adventure and the filtration task at hand.

  • Effective Against: Bacteria (99.9999%), protozoa (99.9%) and particulate. Hollow fiber filter meets U.S. EPA drinking water standards* and NSF protocol P231 testing standard.
  • Versatile: Modular components allow system to quickly and easily transform from a 2 or 4 L gravity system into a small trail filter and back.
  • Simple Transitions: Trail filter simply quick-connects into gravity system to create the complete gravity-fed filter system.
  • Complete Kit: Includes ultralight, durable clean water reservoir, which features our 3-in-1 cap for easy filling, drinking and pouring.

*U.S. EPA Guide Standard and Protocol for Testing Microbiological Purifiers

Product Details
Weight (Standard)1 lb1 lbs 2 oz
Weight (Metric)0.52 kg0.62 kg
Width (Standard)6.5 in8.5 in
Width (Metric)12.7 cm10 cm
Length (Standard)15 in15 in
Height (Standard)3 in2.5 in
Effective against bacteriaYesYes
Effective against chemicals/toxinsNoNo
Effective against particulateYesYes
Effective against protozoaYesYes
Effective against virusesNoNo
Filter mediaHollow FiberHollow Fiber
Filter pore size (microns)0.20.2
Flow (L/min)1 liters per min1 liters per min
Flow (strokes per liter)6060
Cartridge life1500 liters1500 liters
Field cleanableYesYes
Field maintainableYesYes
Water Bottle Adapternono
Cartridge replacement indicatoryesYes
Material(s)Hollow FiberPU
Country of OriginMade in the USA of US and Imported MaterialsMade in the USA of US and Imported Materials

Easy Returns

For all eligible items, we will gladly accept the return or exchange of new items within 30 days of the original shipment date of product for a full refund.

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Trail Base Water Filter Kit

Trail Base Water Filter Kit


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