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The Platypus GravityWorks™ water filter delivers 4 liters of potable water in just 2.5 minutes without requiring a single pump stroke.

  • Features

    • GravityWorks filter combines the speed and utility of the original Platypus CleanStream™ gravity filter with less weight and improved durability
    • System includes two 4-liter reservoirs, 1 for dirty water and 1 for clean water; reservoirs have hang loops for easy in-camp use
    • To use, simply fill the dirty reservoir with water and hang it above the clean water reservoir to let gravity carry water through the filter
    • Hollow fiber filter technology offers a high flow rate of 1.75 liters per minute—that's 4 liters in 2.5 minutes!
    • Filter physically removes particles, protozoa, and bacteria down to 0.2 microns in size, including giardia, salmonella, cryptosporidia and others
    • Dirty reservoir features a quick-disconnect valve that automatically shuts off the flow of water when the hose is disconnected
    • Shutoff hose clamp on the clean water hose allows on-demand water control for filling bottles; clamp also shuts off the system when not in use
    • Clean the system by simply holding the clean reservoir above the dirty reservoir to backflush the filter
    • Reservoirs feature SlimeGuard™ antimicrobial treatment for taste-free performance
    • Platypus GravityWorks™ water filter system is compatible with Platypus Bottles, Water Tanks™ and Big Zip SL™ reservoirs, all sold separately

    Made in USA.

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  • Technical Specs

    Best Use


    Field Cleanable


    Housing Material

    ABS plastic


    1.75 liters per minute


    Protozoa and Bacteria


    (Filter) 2 x 8.5 / (reservoir) 17.7 x 9.1 inches

    Filter Type


    Filter Medium

    Hollow fiber


    10.6 ounces

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