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Gravityworks 4.0L Water Filter System

In Stock  Product Number: 28078

  • Price:
    $95.95   $119.95

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The reviews keep coming and one thing is clear, the Platypus GravityWorks system is changing how people filter water. Delivering four liters of filtered water is just 2.5 minutes with no pumping, there’s simply no easier or faster way to get safe water away from home. Ideal for bigger groups, the system’s eight-liter capacity eliminates both the worry and hassle of keeping plenty of water around for anything you need.


  • Fast! Filters four liters in 2.5 minutes.
  • 8L capacity lets you easily transport and store water for groups.
  • Backflushes in four seconds, maintaining optimal performance with no additional parts or tools required.
  • Platy™ zip opening collects water easily–even in challenging situations.
  • Clean storage reservoir with shutoff clamp makes dispensing water a breeze.
  • Create a custom system to meet your personal needs using our wide range of accessories.
  • Effective: Meets all EPA & NSF guidelines for the removal of Bacteria and Protozoa, including Giardia, Cryptosporidium, E. coli, Salmonella and Cholera.
  • Width 3.25 in / 8 cm
  • Length: 9.5 in / 24 cm
  • Filter media: Hollow Fiber
  • Filter pore size: 0.2 microns
  • Flow (L/min): 1.75 liters per min
  • Cartridge life: 1500 liters
  • Field cleanable: Yes
  • Water Bottle Adapter: No
  • Cartridge replacement indicator: No
  • Made in USA of US and imported parts

Gender: Unisex
Weight: 11.5 oz / 326 g
Dimensions: 3.25" / 8 cm X 9.5" / 24 cm (WxH)
Season: F14
Vendor ProductId: 3135
Review ProductId: 28078


by PowerReviews
PlatypusGravityworks 4.0L Water Filter System

(based on 2 reviews)

Ratings Distribution

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  • 1 Stars



Reviewed by 2 customers

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Just as advertised

By gdmercad

from Bassett, VA

About Me Avid Adventurer

Verified Buyer


  • Easy to Use
  • Good Quality
  • Great For A Group
  • Improves Function
  • Lightweight


  • Bulky

Best Uses

  • Hiking/Camping

Comments about Platypus Gravityworks 4.0L Water Filter System:

Definitely will be using this on our backpacking trips. My backpacking weight will be reduced due to having the ability to filter water my trips for both myself and wife.

  • Was this a gift?:
  • No

Love this filter!!!!

By Jim

from Chattanooga,Tn

About Me Avid Adventurer

Staff Reviewer


  • Compact
  • Easy To Set Up
  • Easy to Use
  • Good Design
  • Lightweight


    Best Uses

    • Backcountry
    • River

    Comments about Platypus Gravityworks 4.0L Water Filter System:

    I used this on a backpacking trip on the AT and it is hands down the best filter. I have used most filters and for ease of use nothing can come close to this. Having four liters helps when you are in larger groups and or don't want to make a second trip to get more water. Love the fact you can disconnect the filter and dirty bag and use the clean water bag as my hydration in my pack. Big advantage is the clamp that lets water out like a garden hose. Which means you can cool down on a hot day. Highly recommend this filter!!!

    • What Is Your Gear Style:
    • Comfort Driven
    • Was this a gift?:
    • No

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