- Let gravity work for you, filter up to 1.75 liters per minute without any pumping
- Lightweight water filter option for base camp or backpack hunting, weighing only 11.8oz
- The two 4L bladders allow you to easily filter 4L of dirty water resulting in 4L of clean water
- Effective against bacteria and protozoa
- Cartridge life of approximately 1,500 liters
- Compact design, stores in a pouch smaller than most 1L bottles
- Warranty - Limited Lifetime
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 basecamps, the system has an 8-liter total capacity, easily supplying filtered water for drinking, washing up, cooking, and cleaning. While it has a big capacity, it is also very compact. When properly stowed it is smaller than most 1L bottles.
|Dimensions||9.5" x 3.25"|
|Water Treatment Type||Gravity|
|Cartridge Life||1,500 liters|
|Flow Rate||1.75L /min|
|Effective Against||Bacteria and Protozoa|
|Filter Pore Size||0.2 microns|
|Filter Method||Hollow fiber|
|Manufacturer Warranty||Limited Lifetime|
I own 3 of these. They work awesome, and last a long time. Make sure to back-flush the system frequently (I do it about every other bag of dirty water) and it will treat you right for many years. Brilliant design and extremely functional.
Compact size & may come in handy to filter water for human consumption.
Platypus GravityWorks 4L Water Filter System is great for filtering water, why you cut wood, adjust your gear or shelter.
But after a few uses (in a fresh spring) the filter time nearly doubled.
I tried clearing the tubes and filter by blowing them out, but it did not help.
On my recent 2-week backcountry trip, I could filter 10 liters of water through my Katadyn Vario Water Filter faster than the Platypus GravityWorks filtered 4L.
I recently got back from a 9 day elk hunt and we used this filter system on a regular basis. It's very simple and efficient. We were blown away by how fast it can filter water!
Platypus GravityWorks 4L Water Filter System