The MSR AutoFlow XL Gravity Filter offers pump-free filtration for basecamp, scout troops, horsepackers and other backcountry groups. One 10-liter fill supplies 2 people with a day's worth of water.

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Race fast and light with the UltrAspire Basham Race vest, designed with an incredibly small footprint that reduces weight and increases heat dissipation, while still letting you carry your essentials.

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The lightweight and compact Katadyn BeFree 0.6 L water bottle filter gives you the freedom to drink anytime, anywhere. It filters at a rate of up to 2 liters of water per minute.

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The Katadyn BeFree 1-liter water bottle filter gives you the freedom to drink anytime, anywhere. Lightweight and compact, it filters at a rate of up to 2 liters of water per minute.

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No pumping required! Just fill and hang the sleek, foldable Katadyn Gravity BeFree 6 L water filter and let gravity do the work. Its EZ-Clean Membrane™ filters water at a rate of up to 2 L per minute.

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This replacement Katadyn BeFree filter works with all BeFree filter systems, including bottles and gravity bags, to give you the freedom to drink anytime, anywhere by filtering water to EPA standards.

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Camelbak® has reworked its drinking valve to deliver twice the flow of the original design.

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Keep your CamelBak hydration reservoir (sold separately) working at its best with this package of 4 Big Bite™ valves.

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The Platypus Big Zip EVO filter connect kit lets you connect a GravityWorks™ or other common water filter to your Big Zip™ EVO reservoir without ever having to take it out of your pack.

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With a new, self-sealing bite valve and wide tubing for a 50% faster flow rate than the previous Big Zip LP, the Platypus Big Zip EVO 2L reservoir helps you hydrate on the trails—sans hassle.

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Perfect for long day hikes or backpacking trips, the Platypus Big Zip EVO 3L reservoir features a new, self-sealing bite valve and wide tubing for a 50% faster flow rate than the previous Big Zip LP.

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Next time you set down your pack, you won't have to worry about your bite valve falling into the dirt. This Gregory bite valve cover with integrated tether keeps your valve dirt- and dust-free.

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Non-toxic, UV-stable, flexible foam Bite Valve cover helps prevent freeze-up.

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When you set your pack down on a muddy trail or in the snow, protect what goes into your mouth from dirt and debris while slowing down the freezing process with the updated Platypus Bite Valve Cover.

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