GravityWorks 4.0L Replacement Reservoir Kit
Size:
Quantity
Only 2 In stock
Join Summit Club+ and earn $6.97 cash back!
GravityWorks 4.0L Replacement Reservoir Kit
You're leading a field camp this summer and the last thing you want to do is take care of a bunch of college kids with giardia. You have the GravityWorks filtration system, but could do with a bit more capacity, so you've grabbed the Platypus GravityWorks 4.0L Replacement Reservoir Kit. Your previous dirty reservoir was getting a bit grungy, so you get to start over with a brand-spanking-new bag, and now you can store an additional four liters of fresh clean waters for your thirsty undergrads. While this kit does not include the actual filter and filtration tube, these replacement reservoirs come in handy when you need additional capacity or a couple backups—just in case.
Details
- Replacement reservoirs for Platypus GravityWorks filtration system
- Dual-layer laminate provides food-grade, taste-free interior
- 8 liter total capacity supplies backpacking groups with clean water
- Disconnect fittings interchangeable with any GravityWorks system
- Item #CAS008D
- Material
- plastic
- Volume
- 4L each
- Valve
- quick-disconnect fitting
- Dimensions
- 3.25 x 9.5in
- Recommended Use
- backpacking, hiking, travel
- Manufacturer Warranty
- limited
Reviews
Q&A
What do you think about this product?
Overall Rating
3.5 based on 21 ratings
Review Summary
View
Selecting an option will reload the available reviews on the pageAugust 28, 2025
I have been using a
I have been using a gravity system for years while hunting the backcountry. There is not comparison to the time saved from having to pump. . . I highly recommend this to anyone. I purchased bigger bags to rotate at camp to save even more time.
Originally reviewed on a Cascade Designs brand site
July 24, 2025
The bag is sturdy and
The bag is sturdy and light. I like this material more than I remember liking the original- I think it's a bit thicker. I lost that bag years ago though so it's hard to make a direct comparison. Regardless, solid replacement bag, would recommend.
Originally reviewed on a Cascade Designs brand site
July 15, 2025
I like the system but
I like the system but there are light weight materials that are waterproof that would be better than the current plastic bag.
Originally reviewed on a Cascade Designs brand site
July 11, 2025
It's great! Went with a
It's great! Went with a 6L so I could filter more water faster
Originally reviewed on a Cascade Designs brand site
July 8, 2025
Too small
Did not have the 6L . . . Always out of stock on everything. . .
Originally reviewed on a Cascade Designs brand site
November 30, 2024
Zip close
The zip close doesn’t close anymore. Otherwise the system works great! I live my gravity works.
Originally reviewed on a Cascade Designs brand site
November 12, 2024
GravityWorks™ water filter
My most valuable piece of backcountry/emergency preparedness equipment!
Originally reviewed on a Cascade Designs brand site
November 7, 2024
I’ve used these for years.
I’ve used these for years. I’ve never had a problem—except when a mouse chewed into one. Otherwise, they’ve served me well
Originally reviewed on a Cascade Designs brand site
March 5, 2024
Great products - PLEASE SELL THE CLEAN TANKS AND CAPS!!!
Awesome system!!! The clean bags double as really great longer distance water containers (IE kayaking for a few days with no fresh water available..) can you pretty please sell them in 4L and 6L with caps??? Much more trustworthy than the "Platy bag" with the seal along its length. You might even make the bags so the caps attach with a tether, they're very easily to lose in the field.
Originally reviewed on a Cascade Designs brand site
January 29, 2023
Love my GW
I have used Gravity Works for years and they have never failed me. The extra weight is worth it.
Originally reviewed on a Cascade Designs brand site
Do you have a question about this product?
Related Categories
Related Searches
Platypus GravityWorks 4.0L reservoir featuresReplacement reservoirs for GravityWorks filtrationBest backpacking water reservoir for college campsDurable plastic reservoirs for hiking adventures4L capacity reservoirs for clean water storageQuick-disconnect fitting for easy useFood-grade material for taste-free hydrationIdeal for summer field camps and outdoor activitiesEnhanced water capacity for backpacking groupsLightweight and portable reservoir solutionMade in USA replacement reservoirs for outdoor gearBackpacking essentials for clean water accessLearn more about GravityWorks 4.0L Replacement Reservoir Kit
