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  • Awesome Gear, Amazing Service

Platypus GravityWorks 4.0L Filter System

Item # PTSE4202

Availability: Out of Stock

Perfect for base camping or larger group backpacking
trips, the Platypus GravityWorks 4.0L Filter System utilizes innovative Hollow
Fiber technology to offer pump-free water filtration.


The Platypus GravityWorks 4.0L Filter System utilizes innovative Hollow Fiber technology to offer pump-free water filtration. Perfect for base camping or larger group backpacking trips, the GravityWorks 4.0L Filter System includes a 4.0L Dirty reservoir and 4.0L Clean reservoir.

The groundbreaking Hollow Fiber Technology used by the GravityWorks 4.0L Filter System enables it to efficiently and effectively filter 4 liters of water in just 2.3 minutes! Simply fill the 4.0L reservoir marked "Dirty," suspend it from a branch using the strong clip webbing, and allow gravity to filter the water into the "Clean" BPA-free 4.0L reservoir. The "Clean" reservoir disconnects for easy dispensing.

The 0.2 Micron cartridge exceeds EPA guidelines and is completely field maintainable and long lasting, effectively filtering up to 1,500 liters of water (depending on water quality) before needing replaced! The GravityWorks 4.0L Filter System can be backflushed in seconds to clear the filter of debris and the streamlined, lightweight filter housing is durable and saves on weight and space.

NOTE: The Platypus GravityWorks 4.0L Filter System meets all EPA and NSF guidelines for the removal of protozoa, bacteria and particulates. It is NOT effective against viruses.

  • High-capacity storage and filtration
  • 4L Dirty reservoir and 4L Clean reservoir
  • SlimeGuard antimicrobial treated reservoirs
  • Clean reservoir disconnects for easy dispensing
  • Clip webbing for easy hanging
  • Bold graphics for quick identification
  • Corner mounted valve for better packing


Best Use Camping
Warranty Limited Lifetime
Removes Bacteria, Protozoa and Particulates
Other SlimeGuard Antimicrobial-Treated Reservoir
Item Weight 11.5 oz
Flow Rate 1.75 liters per minute
Field Maintainable Yes
Filter Material 0.2 Micron Hollow Fiber Technology
Capacity Up to 8 Liters

7 Item(s)

Great for groups and frees up time

Likes: Fast, filtered water while I set up my tent.
easy to clean
sturdy construction
does exactly what it's ,marketed for

Dislikes: everyone drinks my water instead of carrying their filters now

Reviewed by Dwayne C. - July 20, 2016
Awesome set up

Likes: Super easy to use. Everything is labeled, which is great. Love the fact that the strap to hang has a buckle.

Dislikes: N/A

Reviewed by JP - June 15, 2016
great filter system! works easily and quickly.

Likes: The filter does a nice job of providing clean and tasty water quickly. I love the gravity feed system, makes it easy to use . Great for using with a group to fill up everyone's bottles and cooking water. packs down nicely and lightweight.

Dislikes: None

Reviewed by Mike M. - February 22, 2016
Platypus Gavity Works Filter System

Likes: Love this product used on a 7 day backpacking trip - quick, easy filtration of water.

Dislikes: None

Reviewed by Laura K. - December 27, 2015
i like how fast it is

Likes: fast, hanging is no problem, back flush is very easy

Dislikes: having keep dirty equipment separate from clean and drying the clean bag to store for later use

Reviewed by Sugarfoot - October 26, 2015

Likes: Got home to find my Platypus GravityWorks 4.0L Filter System waiting for me. Received it within a week from ordering. Not exactly having the weather to field test it, I decided to familiarize myself with it at home.

Easy assembly, Markings are Clear, No way to mess up.

Filtered 4.0L in minutes. Could actually notice a difference from Tap Water to Filtered. Can't wait to try it in nicer weather.

Dislikes: Nothing

Reviewed by Inside Edge M. - March 20, 2015

Likes: Solid Built, Big Capacity, Easy to Use, No Pumping!

Dislikes: Nothing!

Reviewed by Anonymous Backcountry Edge Customer - August 15, 2014