


Got a hiking, paddling or bikepacking trip planned? Fill up the Watercell ST 4L from Sea to Summit with H2O, and hit the trail.
This water storage solution is made from semi-translucent food-grade TPU that’s BPA, PVC and taste-free. The RF welded seams ensure its strength while the 3D shape and internal baffle design make it easy to stow and drain. It can be effortlessly filled through the screw top standard wide mouth opening and features grab handles that double as lash points for transport.
The streamlined and strong Watercell ST 4L from Sea to Summit will reliably transport water on your lightweight expeditions.
Hi , was wondering if there is a max temp for the water to be stored ?
G'day Mark,
There not a temp rating as far as I'm aware, but you wouldn't want to be putting any hot water in these. They're ultimately designed for water at ambient temps. I know from ours if you leave it in the back of the car on a hot day, the bladder softens a fair bit & sometimes the water can taste abit funny.
If you are wanting to boil water before storing it, I'd wait till it cools a little before putting it in the watercell. It's not insulated, so it wont hold the heat for long.
Is this able to be used for showering?
G'day Stephen,
No, the Watercell ST isn't designed to be used as a shower, however the Watercell X has built-in hanging straps and a combination cap, so can be used as a shower.
Does the X series lid fit on a ST series bag?
G'day,
Yes, the ST and X Watercell caps are interchangeable.
What’s the difference between these and the more expensive X series ? Thanks
G'day Ross,
The Watercell ST is designed to be a lightweight water carrier - it is made from food grade TPU, and is lighter and has a standard wide mouth lid. The Watercell X is designed to be lightweight water carrier, but also doubles as a shower bag. It is made from more durable nylon, and has a multi-function cap and webbing strap for hanging. It weighs a little more, but has a few more bells and whistles.
Is the the cap the same size and thread as the Nalgene wide mouth to fit the MSR water filter
G'day Andrew,
It would be awesome if they did, however I've just checked, and unfortunately, they're not quite the right size.
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