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Water Filters & Purifiers: Platypus GravityWorks 4L Complete Water Filter Kit

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This package includes one (1) Platypus GravityWorks 4.0 Liter Complete Water Filter Kit

Filtering up to 1.75 liters a minute without any pumping, the high-capacity GravityWorks 4.0L water filter is one of the easiest and fastest ways to get filtered water in the backcountry. Ideal for bigger backpacking groups or basecamps, the system has an 4 liter total capacity, easily supplying filtered water for drinking, washing up, cooking, and cleaning.

The replaceable cartridge filters up to 1,500 gallons and produces a flow rate of 1.75 liters a minute.

Made in the USA.

Just fill the dirty reservoir, hang it, and let gravity do the hard work—yep, filtering water can be as easy as fill, hang, relax.

8.0 L (4.0L filtered + 4.0L unfiltered) total capacity easily supplies water for groups. Complete kit weighs 11.5 ounces.

Collecting water is easy—simply open the top, scoop water, and close; control delivery of filtered water with hose shutoff clamp.

Lightweight, gravity-fed, hollow-fiber water filter system adapts to hydration bladders and bottles from Nalgene, Klean Kanteen, Camelback, and more. Adaptable for camping, backpacking, trekking, and survival. Hang it from a tree to filter water for 1-4 people for cooking and washing up.

Meets all EPA/NSF guidelines for removal of 99.9999% of bacteria and 99.9% of protozoa, including Giardia, Cryptosporidium, E. coli, Salmonella, Cholera. Filter pore size is 0.2 microns.


  • 4L Dirty Water Reservoir
  • 4L Clean Water Resevoir
  • Hollow-Fiber Filter
  • Hoses
  • Universal Bottle Adapter
  • Push/Pull Cap Adapter
  • Storage Bag

We are water geeks, laboratory technicians, researchers, designers, managers, directors, worker bees, and people with useful degrees . . . and we also like to laugh, pull pranks on each other, get outdoors and ride, hike, run, paddle, climb, rip, rail and try to enjoy every sip of adventure we can get.

Our mission is to offer the finest taste-free and adventure-ready hydration and water filtration products on the planet, and for over 20 years, we’ve made water bottles and hydration solutions for everyday hydration needs from the city to the trail.

Item Model Number 040818031353
Colour Clear
Height  4 Inches
Length 12 Inches
Width  6 Inches
Weight  431 Grams
Sport  Camping and Hiking

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