“During the boil-water notice we didn’t buy a single bottle.”
Our town had a boil notice for a week. The kids each had their own straw, so nobody waited for the kettle.
One per person. One in every glovebox.
Lab tested · filtration you can sip through
No power. No pump. Just sip.
30-day money back guarantee
Trusted by 10,000+ customers
A pocket filter straw that turns creek, flood or boil-notice water into water you can drink.
30-Day Money Back Guarantee
Sip from it, test it, pack it. If you're not happy, get your money back.
Pull off both caps, put the end in the water and sip like a normal straw. No power, no pump and no setup.
Fresh water: creeks, rivers, lakes, rain tanks, and tap water during a boil-water notice. Don't use it on salt water.
Yes. Shelterline is lab tested, and its hollow-fibre membrane filters the water as you sip.
One per person, plus one in every glovebox. That way nobody shares, and every car has one when it's stuck.
Anywhere you'd want water and might not have it: the glovebox, a go-bag, a school bag or the kitchen drawer. It's pocket size.
It does the same job, sipping clean water straight from the source, at a price that lets you get one for every person instead of sharing one.
After use, blow back through the mouthpiece to clear the filter, then let it air dry with the caps off before you pack it away.
You're covered by our 30-day money back guarantee. Just contact our support team.
Watch it work
Tap a video to play it with sound.
How it works

Pull off both caps. No setup, no batteries.

Put the end in a creek, a rain tank or a glass of tap water.

Sip like a normal straw. The lab-tested hollow-fibre filter cleans the water as you drink.
When the tap stops
Storms, outages and boil-water notices arrive fast. The shelves empty, the power goes, and everyone in the house needs water at the same time.
Your water plan
| Feature | Shelterline | Bottled water | Boiling |
|---|---|---|---|
| No power needed | Yes | Yes | No |
| Fits in a pocket | Yes | No | No |
| Ready in seconds | Yes | Yes | No |
| Nothing to restock | Yes | No | Yes |
| Lives in the glovebox | Yes | No | No |
What you get
One per person. One in every glovebox. Packed and ready for the day the tap stops.
Get yours30-day money back guarantee
Trusted by 10,000+ customers
Our town had a boil notice for a week. The kids each had their own straw, so nobody waited for the kettle.
I used it straight from a creek on a day hike. It’s light, it was easy to sip through, and it packs away small.
I bought the family pack after the last flood. It’s peace of mind for less than a slab of bottled water.
You just pull the caps off and sip. There’s no pump to figure out and no batteries to go flat.