How to Choose a Water Filter or Purifier

Filter water for your whole group with this Platypus GravityWorks™ system. It makes filtering water easy. There's no pumping: Just fill the Dirty reservoir, hang it, and let gravity do the hard work.
Made in USA.
View the Platypus GravityWorks Product LineView all Platypus Gravity Water Filters| Best Use | Backpacking |
|---|---|
| Filter Type | Gravity |
| Filter Medium | Hollow fiber |
| Removes/Destroys | Protozoa And Bacteria |
| Output | 1.75 liters |
| Housing Material | Polyethylene |
| BPA Free | Yes |
| Field Cleanable | Yes |
| Dimensions | 19.5 x 10 inches |
| Weight | 12.3 ounces |
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Bought this for a week long remote trip. Worked great but didn't realize it needs a small amount of water backflushed very frequently. Started to clog and run very slow after a 5-6 bags even though it was the cleanest source imaginable.
This is the easiest and quickest water filtration system I've used. Four of us biked to Goldmyer Hotsprings for a few days and this kept all of our water bottles filled and cooking was a breeze with this easy system of using gravity.
I haven't got to put it to use yet but the days are ticking down! I did test it out and everything to properly function as it is supposed to. The backcountry of Montana will be the real test, Ha.
Awesome filter for groups and super easy to back flush. I love seeing the dirty water transition into the clean bag. I would 100% recommend.
Fill it and forget it! Great water treatment option for any basecamp.




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