MSR Trail Base™ Water Filter Kit

Size: 4L
Sale price£140.00


MSR Trail Base™ Water Filter Kit's ultra-versatile system has been designed with modular components that enable it to be used as a gravity system at base camp, a pocketable filter on hikes or as a quick, lightweight reservoir when you need to carry clean water with you.

Whether you're hiking, biking or base camping, the MSR Trail Base™ Water Filter Kit has already become a best seller and comes highly recommended.


  • Effective Against: Bacteria (99.9999%), protozoa (99.9%) and particulate. Hollow fibre 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.


  • Weight: 0.62 kg / 1 lbs 2 oz
  • Dimensions: 8.5 x 15 x 2.5 in
  • Effective Against:
    • Bacteria: Yes
    • Chemicals/Toxins: No
    • Particulate: Yes
    • Protozoa: Yes
    • Viruses: No
  • Filter Media: Hollow Fibre
  • Filter Pore Size (Microns): 0.2
  • Flow (L/min): 1
  • Flow (strokes per litre): 60
  • Cartridge life: 1500 litres
  • Field cleanable: Yes
  • Field maintainable:  Yes
  • Water Bottle Adapter: No
  • Cartridge replacement indicator: Yes
  • Material(s): PU

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