Platypus GravityWorks 4.0L Filter System

Platypus GravityWorks 4.0L Filter System

Platypus GravityWorks 4.0L Filter System is rated 4.5 out of 5 by 17.
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4.5 Star Rating
4.5
$119.95

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Product Description Item No.   10238362

FEATURES of the Platypus GravityWorks 4.0L Filter System

  • Filters four liters in 2.5 minutes
  • Weighs in at just 10.75 oz (305 g)
  • 8 liter capacity allows you to easily transport and store water for large groups
  • Backflushes in four seconds, maintaining optimal performance with no additional parts or tools required
  • Proprietary Platy zip opening collects water easily, even in a pinch or crappy conditions
  • Clean storage reservoir with shutoff clamp allows for easy dispensing
  • Meets all EPA and NSF guidelines for the removal of Bacteria and Protozoa, including Giardia, Cryptosporidium, E. coli, Salmonella and Cholera
  • Clip webbing strap for easy handling, lifting, and carrying
  • Bold and color-specific "DIRTY" and "CLEAN" graphics for quick identification
  • Corner mounted valve for better packing
  • Field cleanable design
  • Made in USA of US and imported parts

- + Product Specifications
Filter Rate: 1.75 liters / minute
Manufacturer Warranty: Limited Lifetime
Ultralight: Yes
Weight: 10.75 oz
Disclaimer: We only ship this brand to US Addresses.
Features: Field Cleanable
Best Use: Backpacking, Camping, Ultralight Backpacking, Hiking
Effective Against: Protozoa and Bacteria
Cartridge / Cycle Life: 1,500 liters
Filter Type: Gravity
Rated 5 out of 5 by from Best group water filter out there I am a professional outdoor leadership instructor, and have helped start outdoor programs for youth in over 30 countries. For 25 years it has been a privilege to encourage and equip young indigenous leaders looking to offer quality outdoor adventures appropriate for their unique cultural context. There are few pieces of gear that I can recommend as highly. I've field tested almost every water filter out there, and the 4L gravity works is the best group filter on the market. Period. It is light weight, doesn't take endless time to pump, and is effective. It is important to find fairly clean water sources which would be the only drawback. I typically travel with a second cartridge just in case, but can only recommend this product. I also use a UV light bottle for personal travel use, but for group use I will continue to use this as my go-to product.
Date published: 2017-06-20
Rated 5 out of 5 by from I've never considered going back to my pump. I've used my 4.0 L Gravity Works guiding in the Sierras for two summers now. I love that I can hang the system and get back to business. I'm ordering two more for facilitating larger groups in a base camp setting. The learning curve for me was in keeping water in the filter and line between uses by engaging the little pinch lock before the last of the water passed through the filter. This seems to speed up the next filtering process by keeping air out of the filaments. The bags hold enough water to back flush and still have 4 L left. The clear plastic allows the operator to get an idea how dirty the water is and to adjust back flushing accordingly. Slower filtration means either more back flushing or air in the lines. Great for mosquito infested lakes and streams too. Just haul the Gravity Works back to the tent and watch it work for you. Only drawback is that the system can't freeze.
Date published: 2017-03-25
Rated 5 out of 5 by from Never leave home without it! This is the second time I have purchased this item. I have used it quite a bit in the last 4 years and the only thing wrong was that the zippers were getting hard to close. So, I got a new one! Works quickly, works every time, and is so easy to use I can do it in a brain fog after hiking all day. Hands down the best filter I have ever used or seen.
Date published: 2016-06-06
Rated 4 out of 5 by from Easy to use....just fill and let it do the work. I liked having the lager set.
Date published: 2016-05-09
Rated 5 out of 5 by from Great Product My wife and I took it canoeing on the Suwanee River in FL for a few days after our purchase, we filtered all the water we used through it. It is light weight, simple to use, and provided plenty of clean water. Upon our return home, it was simple to clean and store.
Date published: 2016-04-25
Rated 5 out of 5 by from Works great with my 2.0L system as welleen I have the 2.0L filter system;but I wanted to get the 4.0L for my family camp outs. I love that I can easily change bettween the 2.0L and the 4.0L. How well does it work? It can filter 4L faster than you can drink it. Under 3 minutes. A group of 8 can be refilled in about ten minutes well you enjoy your quick snackbreak. Easy to clean and back flush. I give it 24 hours to dry, before I put it back for storage. Great taste too. Beauty!
Date published: 2016-01-23
Rated 5 out of 5 by from Amazing filter! So much easier than pumping water and it provides you with water storage. Huge quality of life booster.
Date published: 2015-10-27
Rated 5 out of 5 by from Quick and easy water filter system! I'm an amateur backpacker and avid outdoor enthusiast. Had this on 1 backpacking trip on the Shenandoah National Park (~3300ft elevation) so far on the Nicholson/Corbin Cabin trail. I've used it on a local Hughes river running through and walked it back to camp. Filtered 4 liters of water very quickly (~5 minutes) and very easy to use when hung. I'm so glad I got this because I was a person who use to always boil water or carried 3 L in with my camelbak; but this will certainly extend my trips in the future! The plastic bags are of high quality and everything seems durable. I've kept the clean components in a plastic baggie so they stay nice and dry. I would highly recommend this product and look forward to using it more in the future!
Date published: 2015-10-24
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What happens to filter if it freezes in September in higher altitudes

Asked by: Llama packer
Hiya Llama packer, thanks for your question! You should not use a water filter after it has been exposed to freezing water. You should consider using tablets instead, like MSR Aquatabs or Katadyn Micropur MP1 Purification Tablets. Check them out here: MSR Aquatabs Water Purification Tablets https://www.moosejaw.com/moosejaw/shop/product_MSR-Aquatabs-Water-Purification-Tablets_10334660_10208_10000001_-1_ Katadyn Micropur MP1 Purification Tablets https://www.moosejaw.com/moosejaw/shop/product_Katadyn-Micropur-MP1-Purification-Tablets_10009076_10208_10000001_-1_
Answered by: Alice in Wanderland
Date published: 2017-04-14

Does this system filter to drinkable water standards? The video says cooking/cleaning water. Would the Platypus Gravityworks Carbon Filter Element be a benefit or does the included filter perform carbon filtering? Thanks

Asked by: Tincup
Hey there Tincup, good questions! Yes... in addition to providing water for cooking and washing, this system provides clean drinking water. You can use the Carbon Filter Element along with with the GravityWorks filter to improve the taste or odor but its not a necessity. (Some people can't tell the difference in taste so it's just a preference.) Since the carbon filter will not filter out the bad stuff on its own, you'll want to use the carbon filter after the water is already filtered with the regular filter. It is an accessory and not meant to be used as a substitute for the regular filter. (Wow, I just said filter A LOT.) Hope this helps!
Answered by: Alice in Wanderland
Date published: 2017-03-30
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