MSR Trail Base Water Filter

We currently have 2 in stock.


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

                                                      2 LTR         4 LTR
SKU                                             10372         10943
Weight (Standard)                        1 lb           1 lbs 2 oz
Weight (Metric)                            0.52 kg       0.62 kg
Width (Standard)                            6.5 in         8.5 in
Width (Metric)                              12.7 cm        10 cm
Length (Standard)                          15 in            15 in
Height (Standard)                             3 in             2.5 in
Effective against bacteria                   Yes           Yes
Effective against chemicals/toxins       No             No
Effective against particulate               Yes             Yes
Effective against protozoa                  Yes            Yes
Effective against viruses                     No             No
Filter media                            Hollow Fiber        Hollow Fiber
Filter pore size (microns)                  0.2              0.2
Flow (L/min)                          1 liters per min     1 liters per min
Flow (strokes per liter)                    60                 60
Cartridge life                            1500 liters         1500 liters
Field cleanable                                Yes                Yes
Field maintainable                           Yes               Yes
Water Bottle Adapter                      no                no
Cartridge replacement indicator     Yes                 Yes
Material(s)                               Hollow Fiber          PU

  • Tags: FP Hydration Purification