Squeeze filters, gravity systems, UV purifiers, and pump filters tested on backcountry water sources.
“0.1-micron hollow-fiber filter that weighs 3 oz and has become the default water filter for thru-hikers. Backflushable, virtually indestructible, and proven on every long trail.”
16% STABLE
“Hollow-fiber squeeze filter with a 3L/min flow rate that outpaces the Sawyer Squeeze. The newer filter that fixes the Sawyer's slow-flow problem.”
14% STABLE
“Collapsible 1L flask with an integrated 0.1-micron filter. The fastest-flowing squeeze filter on the market — drink directly from the source in seconds.”
11% STABLE
“Gravity-fed hollow-fiber purifier that removes viruses, bacteria, and protozoa without chemicals. The set-it-and-forget-it option for group trips and base camps.”
11% STABLE
“UV-C light purifier that neutralizes 99.9% of bacteria, viruses, and protozoa in 90 seconds. The only option that handles viruses without chemicals or a pump.”
10% STABLE
“4-liter gravity filter system that processes water hands-free while you set up camp. The group-trip standard for filtering large volumes without effort.”
9% STABLE
“Handheld squeeze-pump hybrid that filters directly from the source into any bottle. The ultralight option for fast-and-light day hikers and trail runners.”
8% STABLE
“Classic pump filter with a glass-fiber element that handles silty water better than hollow-fiber alternatives. The workhorse for turbid backcountry sources.”
8% STABLE
“Press-style purifier that removes viruses, bacteria, protozoa, and heavy metals in 8 seconds. The travel-and-backpacking crossover for international trips.”
7% STABLE
“LifeStraw's backcountry squeeze filter with a microbiological purifier cartridge. The budget-friendly squeeze option from the brand that popularized portable filtration.”
6% STABLE
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