MSR Trail Base Water Filter 4L 5061-928

MSR Trail Base Water Filter 4L


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Show Description

A simple system for getting clean water. You can use it as a squeeze system on the trail or as a gravity-fed, hands-free system once you're in camp. Just connect the dirty water source to the filter and the gravity pipe cleans water out the other end.

  • Includes an MSR TrailShot filter and two 4L MSR Dromedary bags, labeled "clean" and "dirty", plus a connector hose.
  • Compact silicone bulb pump is easy to use and only requires 1 hand.
  • Long hose keeps you out of the dirt, when drinking from the source.
  • Hollow-fibre filtration system is easy to clean, and pumps with little resistance.
  • Water quality will significantly affect the filter's life.
  • Filter mouthpiece has a debris cover to keep things clean.
  • Filter cleans with an easy shake.
  • Do not allow the cartridge to freeze after initial use.

Tech specs

Show Tech specs
Ideal for
  • Camping and hiking
  • Car camping
  • Day hiking
Filter type

Water can be treated using various types of filters, chemicals or non-chemical purification methods, or a combination. Filters on their own will not remove viruses as they are too small.

Hollow fibre technology
Output 1L/min
Dimensions 30.5 x 12.7cm
Cartridge life

The life of the filter cartridge is based on the quantity of water you can treat before the cartridge is no longer effective. This does not apply to battery operated or chemical filter systems.

Filter size

A 0.5 micron or smaller filters protozoa and some large bacteria; 0.2 micron or smaller filters smaller bacteria such as campylobacter.

Effective against protozoa

Protozoa are larger than one micron and include cryptosporidium and giardia.

Effective against viruses

Most viruses are in the 0.1 micron size range, but they can be as small as 0.002 microns.

Effective against particulate

Particulate consists of very small bits and pieces such as dirt or bugs.

Effective against bacteria

Bacteria can cause illnesses such as diarrhea and dysentery and are about 1.0 micron in size, although some can be as small as 0.2 microns.

Made in USA