If you intend to travel where there are unreliable water sources then you need a water filter or purifier. Filters and purifiers protect against lots of parasites and water borne diseases, particularly Gardia. A ceramic filter will remove anything (bugs & dirt) in the water down to 0.2 microns while a purifier kills the bugs in the water but removes nothing. MSR filters screw onto the Nalgene bottle range to make for trouble free filtration.
£265.50 Saving 10%
Mechanical purifier able to remove particulates, bacteria, protozoa and viruses. 490g.
£12.60 Saving 10%
Maintenance kit to keep your Guardian Purifier running smoothly.