GravityWorks 2L Water Filter System-Bottle Kit


The Gravityworks filter is an ultralight, ultra compact and versatile water filter with a long life. If you don't like pumping water, the GravityWorks makes filtering hassle-free. The bottle kit is a minimalist filter kit designed to filter directly to your water bottle or hydration bladder, and is perfect for the backcountry hunter that wants a no-frills, super-light water filter. This kit includes the filtering element (2.7 oz.), a dirty water bag and surgical tubing for a total weight of 6.3 oz.


  • Bottle Kit: Filter element (2.7 oz.), 2 liter dirty water reservoir and surgical tubing.
  • No pumping: Just fill the dirty reservoir, hang it, and let gravity do the hard work.
  • Fast: Filters up to 1.5 liters per minute; filter lifetime up to 1,500 liters of water.
  • Effective: Meets all EPA & NSF guidelines for the removal of 99.9999% of bacteria and 99.9% of protozoa**.
  • Ultralight & Ultracompact: System can weigh as little as 6.3 oz. (180 g) and stows smaller than most 1L bottles (depends on configuration).
  • Field-cleanable: Microfilter can be easily backflushed in 4 seconds to maintain filter performance.
  • Hollow Fiber Advantage: Hundreds of tiny, hollow fibers, enable the microfilter to filter water faster than traditional filter media.
  • Easy collecting & dispensing: Collecting water is easy—simply open the top, scoop water, and close; control delivery of filtered water with hose shutoff clamp.


  • Filter element
  • 2L Dirty water reservoir
  • Surgical tubing
  • Bottle connection adapters


    Tech Specs

    Bottle Kit
    Effective against protozoa Yes
    Effective against bacteria Yes
    Effective against viruses No
    Effective against particulate Yes
    Effective against chemicals/toxins No
    Weight 6.3 oz (all included)
    Width 3 in / 8 cm
    Length 9 in / 23 cm
    Filter media Hollow Fiber
    Filter pore size (microns) .2
    Flow (L/min) 1.5 liters per min
    Cartridge life 1500 liters
    Field cleanable Yes
    Water Bottle Adapter Yes
    Cartridge replacement indicator No
    Country of Origin Made in U.S.A. of U.S. and Imported Materials


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