Platypus GravityWorks Water Filter Complete Kit - 2 Liter
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Platypus took the already fast and easy-to-use GravityWorks™ filter system and came up with this smaller and lighter 2-liter complete kit that adapts to your backcountry travels.
Shop similar products- Complete kit includes a 2-liter dirty collection reservoir, a 2-liter Platy bottle, GravityWorks filter cartridge, in-line adapter, bottle adapters and hoses
- Fill the dirty collection reservoir, hang it above the clean Platy bottle and let gravity carry the water through the filter
- Bottle adapter fits Platypus and most Nalgene, MSR, Sigg and Klean Kanteen bottles (not included) also attaches to most hydration reservoir shutoff valves and tubes
- Hollow fiber filter technology offers a high flow rate of 1.5 liters per minute—that's 2 liters in less than 90 sec.
- Filter physically removes particles, protozoa, and bacteria down to 0.2 microns in size, including giardia, salmonella, cryptosporidia and others
- Unfiltered reservoir features a quick-disconnect valve that automatically shuts off the flow of water when hose is disconnected
- Use the included push/pull adapter to connect the GravityWorks system directly into any Platy bottle with a push/pull cap; also works with many other bottles and reservoirs
- Clean the system by simply holding the filtered-water reservoir above the unfiltered-water reservoir to backflush the filter
- Taste-free reservoirs and silicone hoses ensure great-tasting water
Made in USA.
View the Platypus GravityWorks Product LineView all Platypus Gravity Water Filters| Best Use | Backpacking |
|---|---|
| Filter Type | Gravity |
| Filter Medium | Hollow fibers |
| Removes/Destroys | Protozoa And Bacteria |
| Pump Force | Not applicable |
| Pump Strokes per Liter | Not applicable |
| Output | 1.5 liters per minute |
| Housing Material | ABS plastic |
| BPA Free | Yes |
| Field Cleanable | Yes |
| Dimensions | Filter: 3 x 7.4 / reservoirs: 19 x 8/13.5 x 7.5 inches |
| Weight | 10.9 ounces |
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Little effort w/o moving parts
As an AT hiker, water is never guaranteed. This works as a great filter. If you are near a reliable water source, this will even work as a "sink" (I have older, 4Liter series, worth it for me). After filtering, hang clean bag so that end of hose is 12" off the ground. Now you can prop the cutoff valve open (I used a twig) and have running water to wash pots, utensils, and face. The seller for me was no moving parts to break in the field. When your pump handle breaks off or inner chamber of pump filter cracks, you're up a creek without a filter (pardon the pun). This gravity filter can be repaired with super glue, either to the hose or bags. The learning curve is the backflush technique. Watch the videos, practice at home. If you get air in your line, pinch the "clean" hose 3" directly below the filter for a few seconds and then release. This may need to be done a few times, but soon the water is flowing great. Sleep with filter to improve life of filter/prevent freezing. I always keep twine and small carabiner in carry bag so that I have some thing to hang bag while filtering. That way I don't have to hold it will it works. I don't know the average time, but at one point I had a liter filter in 1 min 10 secs. I like it. Plus you can carry dirty water bag and have it to filter later. I'll buy again as a gift for someone one day.
2L and 4L r awesome for groups, scouts
Very trustworthy and solid performer. Best for group use.... just add more clean side bags as group grows. Poor reviews almost always from folks who fail to maintain filters.Always backflush every bag or so, depending on how dirty the source is - easily done by swapping which bag is higher. Shake the filter to loosen up dirt. At home backflush with few bags of tap water in shower, shaking filter occasionally then dry all parts over a fan or air vent or in an attic Having used with many dozens of Scouts, these are safer in practice than pumps, UV, or chemicals
Best thing to happen to my latest backpacking trip
This filter is great! I have almost no complaints. It's easy to use, requires minimal effort (no pumping, no squeezing), is lightweight, compact, and does seemingly limitless filtration. I enjoyed having both the clean and dirty bladder as it allowed me to filter one batch of water into the clean bladder while still at the water source and then bring an additional full dirty bladder back to my campsite for a bigger reserve of potentially clean water. The 2L was great for me as a solo camper, but I can imagine wanting something bigger for a group larger than 2. I wish the clean bag had a handle or hanging strap for easier transport and storing. And it took me a few tries to become efficient with the setup, but it easy nonetheless.
Best Water Filter Ever!
This is by far the best filter I've ever used. It is faster and easier than anything with a pump, and it is so light and compact I take it everywhere. Some people here are complaining about flow rate, air locks, etc. If you backflush regularly you won't have any problems at all -- read the instructions! I have filtered silty, dirty water from a livestock infested area for a group of people for days on end with no problems at all. One of the best parts of this system is that you can carry a lot of water back to camp with you and filter / use it as you need it. You can also use just the dirty bag and a Platy adapter as an ultralight system that filters water directly into the reservoir in your pack, right through the hydration tube. The only thing I don't like is that the filter can be damaged if it's frozen. That's easy to deal with though, just keep the filter in your tent / pocket when it's cold out.
Awesome system, read the instructions!
Found this to be a huge labor and time savor versus pumping, and were so impressed with how fast and easy it is. Should note that this is most useful where you have a deep and/or fast-moving water sources, such as even a shallow stream with a good current or a lake—filling it from a smaller spring source is nearly impossible. Crucial: you must perform the step (clearly illustrated in the instructions which are sewn into the bag!) to backflush the air out of the line in order for it to flow well. Then, everything moves right along. We did not find it difficult to fit the components in the bag, as some other reviewers found. Just fold the dirty pouch up neatly. A nice bonus was that the zip seal on the dirty pouch is strong enough to be carried as reserve water if you're in an area where it's scarce.
Test It Before You Go
I used this water filer on two backpack trips and only ran clear water through the filter. It never flowed at the rate indicated, that being 4 liters in 2.5 minutes. In fact, it got to the point on my 22 day backpack of the John Muir Trail that it took ONE HOUR to produce 10 liters of water. I never froze nor dropped the filter cartridge. I did see someone else's on the trail working at what I suspect was the specification rate. I also developed a small hole in the dirty bag, thankfully in the upper inch of the bag. So it didn't significantly affect the ability to filter 2 liters of water at a time. My chief piece of advice to anyone purchasing this product - TEST IT FIRST AT HOME TO DETERMINE THAT IT FILTERS AT THE RATE SUGGESTED. It was a huge waste of time having to take an our out of my day to filter 10 liters of water on my JMT trek.
nice until you need to filter dirty water
This filter is like a dream when new and filtering very clean water. However, like all filters this one clogs up quickly when filtering dirty water. I got about 50 liters through the filter before it had to be replaced. Hiking in the desert, I am often unable to find clear water to filter so it is very important for a filter to handle cloudy water well. Backwashing the filter after every 2 liter run allowed us to finish the trip but it is no longer reliable enough to continue to use without a replacement filter. The 'dirty' water I used was not extremely dirty, just slightly cloudy. I suspect the 1500 liter lifespan for this filter is for tap water. The outdoor industry needs to come up with a standard for rating water filters that allows for filtering water that is not already clean, like the comfort and survival ratings for sleeping bags. 1500 Liters for very clean stream water or tap water seems plausible for this filter, 10-20 liters for mildly cloudy water. The dirty water bag does not seal well enough to transport water in. I only use the dirty water bag and fill my regular water bottles and osprey reservoir directly.
Easy to use system.
After hiking to the bottom of the Grand Canyon I didn’t want to carry enough water to hike out. So I stopped along Bright Angel Trail and filtered water from the small creeks along the trail. It was easy to use and was my 1st Time ever filtering water. My friend had a different system and had to keep squeezing a hand pump while I just let gravity to the job for me. I was very happy with this system.
Fast & Virtually Effortless Water Filter
On a recent 4-day trip this became the source of potable water for our party of three. On day two after reaching high camp it was used to quickly filter 12 liters of high lake water into a 6-liter Dromedary bag, 2-one quart water bottles with small and large caps, a Camelback bladder, and the Platy 2-liter clean bag that kept us supplied for the rest of our stay. A quick backflush burp by raising the clean water vessel to clear the air bubbles and 2 liters are done in a couple of minutes without any other effort. Then another quick backflush to prepare for the next 2 liters. The bottle adapter came in very handy for the assortment of containers that needed to be filled. I did use an empty Sawyer filter bottle to dip into the lake to fill the Platy dirty bag. I really like this filter!
works great as advertised
I noticed some reviews complained that it didn't flow well at all. I have not had that issue. I took someone's advice and practised with it at home first, and once I learned how it works, it is a piece of cake to use. Filters 1.5 liters a minute quite easily. You just have to read instructions carefully. This filter by far beats the filters that you have to pump because you just hang up and it does its thing, quite quickly too. I love how fast and easy you can filter liters of water!