Platypus GravityWorks 4.0L Filter System

Platypus GravityWorks 4.0L Filter System

Platypus GravityWorks 4.0L Filter System is rated 4.6 out of 5 by 25.
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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
Features: Field Cleanable
Best Use: Hiking, Camping, Ultralight Backpacking, Backpacking
Weight: 10.75 oz
Effective Against: Protozoa and Bacteria
Cartridge / Cycle Life: 1,500 liters
Filter Type: Gravity
Filter Rate: 1.75 liters / minute
Ultralight: Yes
Manufacturer Warranty: Limited Lifetime
Disclaimer: We only ship this brand to US Addresses.
Rated 5 out of 5 by from Fast filtering! We saw this gravity filter being used on a previous backpacking trip by a friend of ours. My wife and I couldn’t believe how fast it filtered. We decided to purchase one immediately when we got back. Moosejaw had the best price and it was our first time using this site. We weren’t disappointed. Great product and fast shipping! It will be a little heavier for those ultra backpacking enthusiasts but well worth the little extra weight for us. We took the platypus on another 25mile trip and it worked flawlessly! I would recommend this filtering system and Moosejaw!
Date published: 2017-10-17
Rated 5 out of 5 by from No more pumping...! Used the Platy 4.0L Gravity Works Filter up in the High Peaks in the ADK on a three day trip. It was easy to fill from Marcy Brook which was running next to our lean to. It filters water really fast and a quick back flush kept that flow each time we refilled it. Made getting plenty of water painless. Absolutely love the product. Great for backpacking as it's lightweight.
Date published: 2017-10-08
Rated 5 out of 5 by from Great Filter This filter is fast and amazing. Light weight to carry and easy to fill
Date published: 2017-09-15
Rated 3 out of 5 by from Good filter, but could use some design improvements. This filter is awesome and quick if you're filtering water from a low sediment/ debris source. However, I ran into an issue where the hose port in the dirty bag kept getting clogged from sand and tiny bits of kelp. After clearing the hose port about 3 times, I had to fill the dirty bag with my stove pot and pour the water through a t-shirt as a primary filter to get the debris out. I realize that sand and debris can be an issue with any filtration system, but clearing the dirty bag's port from obstructions is a real hassle since it's located deep within the bag and hard to get to. I would suggest that the folks at Platypus redesign the dirty bag to include some sort of primary fine-screen filter to help in situations like mine.
Date published: 2017-09-01
Rated 5 out of 5 by from Volume Calculations Only gripe is the volume labels. 140oz/4L, 100oz/3L, 70oz/2L, 34oz/1L. Why wouldn't they just label it correctly? Is the common backpacker not smart enough to understand this 5oz variance at 4L? Am I miscalculating? Also the design would be better with a locking clip on the dirty water bag. I wouldn't trust carrying the dirty water bag when it is full of water. The bag is good for walking a short distance from a water source while holding the bag. They have locking clips for the hydration water bags with similar design, not sure why they would omit this! If it came with a bottle kit, that would make this system even better. Not sure if I can buy the kit to use with this...
Date published: 2017-08-24
Rated 5 out of 5 by from This is a winner for group backpacking The 4 liter is the best! We were out for 3 nights with 6 people and it served 90% of our water needs. Everyone pitched in and got water and easily dealt with the simple connections. The water was exceptionally clear from the river so it filtered quickly. I was with another group earlier in the summer on the Owyhee River which was a 7 day trip and we went through one filter for 7 people. It is light compared to a hand pump. Definitely a winner.
Date published: 2017-08-24
Rated 5 out of 5 by from Works as advertised Works as advertised. Great birthday/Christmas gift.
Date published: 2017-08-23
Rated 4 out of 5 by from Way better than pumping This is a well designed system and easy to use, but it could be even better. The Clean reservoir needs an on-off spigot to screw on after filtering is done so that you can easily dispense the water. The push-pull cap that Platypus makes is terrible for this purpose. It's hard to open and close when hanging from a tree. Also, I added quick-connector to the clean end so that I could filter directly into my Big Zip hydration bladder and not have to carry the clean reservoir on some trips. If you keep the other connector you can also filter into a Hoser. This should be standard equipment.
Date published: 2017-08-16
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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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