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Sawyer 3-Way Inline Water Filter

This product is no longer available, but don't go just yet.


  • Insert the filter inline into your hydration pack drink tube (sold separately) and you can simply fill your reservoir with dirty water and drink away
  • Or, create one of the lightest filter systems available by attaching a drink tube (sold separately) to the filter then submerge the filter into dirty water and start sipping
  • When traveling overseas, use the included faucet adapter to filter water as it comes out of the tap
  • Hollow fiber membrane filter physically removes particles, protozoa, and bacteria down to 0.1 micron in size, including giardia, salmonella and cryptosporidium
  • All Sawyer water filters exceed Environmental Protection Agency (EPA) recommendations for removal rates
  • Filter is fully field maintainable to ensure a fast flow of water; use the faucet adapter for thorough back washing from a household faucet
  • Includes hollow fiber filter, faucet adapter, hydration pack assembly kit, and cleaning and maintenance instructions

Made in USA.

View all Sawyer Inline Water Filters

REI membership


Best Use Backpacking
Filter Type Gravity
Filter Medium Hollow fiber membranes
Removes/Destroys Protozoa and bacteria
Pump force Not applicable
Pump strokes per liter Not applicable
Output 1.7 liters per minute
Housing material ABS Plastic
Field Cleanable Yes
Dimensions (Cartridge) 1.75 x 3.5 inches
Weight 2 ounces

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REI's guarantee doesn't cover ordinary wear and tear or damage caused by improper use or accidents.

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