Watercell X Reservoir
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Watercell X delivers rugged, packable hydration storage for remote basecamps
What Our Gearhead® Experts Are Saying:
"I’ve used the Watercell X on multi-day backpacking trips and remote car-camping missions—it’s incredibly durable, easy to carry, and packs down flat when empty. The cap design makes it easy to pour, hang, or even use with a shower attachment."
When water sources are scarce or distant, we trust the Sea to Summit Watercell X to keep our supply clean, secure, and close at hand. Whether we’re setting up a remote basecamp or spending days off-grid in the wilderness, this flexible reservoir holds serious volume without the hard edges and bulk of traditional jugs.
Built with RF-welded seams and abrasion-resistant TPU, the Watercell X is ready for rugged environments. Its internal baffle keeps water stable while carrying, and the multi-function cap makes it easy to fill, pour, and connect accessories like the shower head. A welded carry handle and lash points let us hang it from a tree, secure it to a pack, or haul it back to camp. When hydration matters most, this is the tool we bring to make it happen.
Details
- Durable reservoir to transport and dispense water in the backcountry
- Flexible construction is abrasion resistant for confident use
- Food-grade TPU laminate has your water coming out tasteless
- Wide mouth and integrated handle enable a spill-free pour
- Showerhead attachment allows you to easily bathe on long trips
- Welded lash points and adjustable strap make transportation easy
- BPA and PVC free
- Item #STSZ01F
- Material
- TPU film, 400D nylon laminate
- Volume
- 4L, 6L, 10L, 20L
- Valve
- screw-top
- Dimensions
- [4L]11 x 8.5 x 4in, [6L] 13 x 9 x 4.2in, [10L]16.5 x 11.2 x 5in, [20L] 20.2 x 14 x 6.2in
- Claimed Weight
- [4L] 6.0oz [6L] 6.9oz [10L] 8.6oz [20L] 11.8oz
- Manufacturer Warranty
- lifetime
Reviews
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Overall Rating
4.5 based on 67 ratings
Review Summary
Customer Images
Here's what customers have to say
The Sea to Summit water storage containers are generally well-received for their design, durability, and functionality. Customers praise the collapsible nature, variety of sizes, and ease of use, finding them reliable and convenient for activities like camping, backpacking, and kayaking. However, some users have experienced issues with leaks, particularly at the cap or lid, which can be difficult to open and close properly. A small number of customers also report defective units with manufacturing problems. Overall, the majority of customers are satisfied with the water containers and recommend them for their versatility and thoughtful design, though proper care is required to avoid leaks.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageJune 21, 2025
Junk
[This review was collected as part of a promotion.] Got a second one to replace the first that was defective and its just a pile of junk gets the inside of a backpacking pack wet and doesn't hold water the greatest the shower is a gimmick
Originally reviewed on Sea to Summit
June 14, 2025
Amazingly useful item.
[This review was collected as part of a promotion.] I am so happy I got these. I needed more water storage on a recent trek and they were perfect. Packed down small and light and holds so much.
Originally reviewed on Sea to Summit
April 13, 2025
Must have product
[This review was collected as part of a promotion.] Out of the things you don’t think about this is one you should get. Just the ability to empty all the contents out and have it dry properly is a plus. I have used a lot of bladders and this one is tough-easy to fill and empty while being built like a tank
Originally reviewed on Sea to Summit
March 2, 2025
My 10L cell leaked on
[This review was collected as part of a promotion.] My 10L cell leaked on me during our winter camping trip. The leak was coming from the lid even after securing it before transportation.
Originally reviewed on Sea to Summit
December 23, 2024
The watercell is my constant
[This review was collected as part of a promotion.] The watercell is my constant companion when hiking or hunting. It's soft construction helps it slide into a backpack easily and as you use the water or if you only semi filled it to begin with it only takes up the space of the water it holds. The exterior is a rigid and durable material and has held up to being dropped onto rocks, brambles and all other manner of potential punctures flawlessly. I started with the 6L but have moved to the 4L unless it's scorching out. The 6L now lives in my truck for refills/emergencies.
Originally reviewed on Sea to Summit
November 12, 2024
Watercell X is fantastic
[This review was collected as part of a promotion.] I can't think of a thing I would change for this water storage bag. It works perfectly.
Originally reviewed on Sea to Summit
October 28, 2024
Excellent way to transport water on a motorcycle
[This review was collected as part of a promotion.] I use the 6 liter version and carry it on my motorcycle when I camp.
Originally reviewed on Sea to Summit
October 18, 2024
Amazing product quality and engineering
[This review was collected as part of a promotion.] I love the tent we purchased. Great design, so many thoughtful features! We also love this gravity water filter. Great for base camping.
Originally reviewed on Sea to Summit
October 4, 2024
2/3 came with leaks
[This review was collected as part of a promotion.] Ordered 3, 2 came with pinhole leaks. Given that, I didn’t trust replacements and I asked for a refund. They did so without a problem, but 2/3 having leaks to start also leaves me with little confidence in the third. I do think the shape and design makes them easier to use, and dry out afterwards, than the msr dromedary bags, so was sad to see their poorer quality.
Originally reviewed on Sea to Summit
August 2, 2024
Great water tank!
[This review was collected as part of a promotion.] Great water tank. This is my 2nd watercell for longer overland trips.
Originally reviewed on Sea to Summit
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