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Drink up.

Water is the number one backcountry necessity, which makes the Katadyn Expedition Filter worth its weight in gold. Filtering at a whopping gallon per minute, the Expedition Filter keeps you and your crew hydrated with pure aqua after a tough day of making miles. With a cartridge life of 26,000 gallons, you're more likely to need an oil change (or a new car) before you go thirsty.

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Here's what others have to say...

how will it work on brackish water or salty...

how will it work on brackish water or salty water

Filters will not work with salt water, you have to desalinate the water.