Platypus®: Gravityworks™ 4L Filter System

An image of Gravityworks™ 4L Filter System
  • Zoom in for more detail

Our Price: $119.95

    IMS#: 664531
  • Qualifies for free shipping.
  • Platypus® products are not available for overseas shipment.


The redesigned 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.


  • Packs Small
  • Ultralight
  • Color-coded Clean and Dirty components
  • SlimeGuard™ antimicrobial-treated reservoir
  • Clean Reservoir disconnects for easy dispensing
  • Dispense on-demand for cooking, cleaning, and more.
  • Clip webbing for easy hanging
  • Adaptable to work with any hydration system
  • Redesigned Corner mounted valve for better packing
  • Fast! Pump-free filtering of up to four liters in 2.3 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.
  • Proprietary 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 particulates, Bacteria and Protozoa, including Giardia, Cryptosporidium, E. coli, Salmonella and Cholera.
  • Not Effective against viruses or chemicals/toxins
  • Made in USA of USA and imported parts


Weight:10.9 oz/ 310 g
Width:3 in/ 8 cm
Length:9.5 in / 24 cm
Filter media:Hollow Fiber
Filter pore size:.2 microns
Flow (L/min):1.75 liter per min
Cartridge Life:1500 liters
Field Cleanable:Yes

GravityWorks in Use

Platypus Design Philosophy

McAfee Secure sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams
Summit Hut: Start Your Adventure Here