America's go-to emergency water filter
Drinkable water. Anywhere. Anytime.
Our high-capacity survival water straw filters 99.99% of bacteria and parasites. No batteries. No expiration. Pack one in every bag.
Emergency Water Straw — 5-Pack
324 reviews
The bestseller, in two sizes
Pick the pack that fits your kit.
One filter weighs less than a deck of cards and outlasts most of the gear in your kit. Here's how the 2-pack and 5-pack compare.
2-Pack
Best for: a get-home bag and a partner.
- 2 filters · enough for two bags
- Filters 99.99% bacteria & parasites
- No batteries, no expiration
- Ships free (over $35)
5-Pack
Best for: a family of 4–5 or a multi-bag setup.
- 5 filters · whole-family coverage
- Lowest cost per filter
- Lowest cost per filter we offer
- Ships free
The 1L Soft Flask
Hydration that packs flat and hits the trail with you. Pairs with the water straw for a complete in-the-field filtration setup.
- 1 Litre · 33.8 fl oz
- BPA-free · Leak-proof
- Field-tested with our water straws
- Packs flat when empty
One straw, four ways
Drink from the source — or bring it with you.
The straw works straight from a stream, screws onto any standard 28mm bottle, and integrates with most gravity bag systems. One filter, every situation.
- Drink directly from a creek, lake, or puddle
- Attach to a 28mm bottle (most water bottles fit)
- Connect to a gravity bag for hands-free filtering
- Filters >1,800 gallons per straw — no expiration
No power required
Works on suction alone. No batteries, no pump, nothing to charge.
Never expires
Unlike bottled water, food bars, or first-aid meds — buy it once, forget about it.
Packs anywhere
Lighter than a granola bar. Fits a glove box, backpack pocket, or tackle box.
Shop the categories that matter
By use-case, not format
Real customers, real reviews
What buyers say
"I ordered this portable water filter, and it's very easy to use and really practical for outdoor activities, camping, hiking, or emergency situations. I like that it doesn't require electricity or batteries; you simply use it directly, and that's it. The design is compact and lightweight, perfect for carrying in your backpack without taking up much space. It effectively filters water."
Alicia V. · Verified buyer"I loved this product, we went hiking and camping sabes our tríp! Super easy to carry and you can have clean water during your adventure! If you like going into nature and have adventure you have to take this with you"
Munoz · Verified buyer"Bought the Gravity Water Filtration System before hurricane season. Felt prepared for the first time. Will buy again for the cabin."
Tom B. · Verified buyer"Bought this to keep in my emergency food supply box just in case of a disaster. It’s lightweight, compact, and gives peace of mind knowing there’s a reliable way to filter water if needed. A must-have for emergency preparedness, camping, or travel."
Andrea C. · Verified buyer
Built by preppers, for preppers.
We hand-pick every product in this store and field-test it before it ships. The catalog is curated alongside SouthernPrepper1, the YouTube creator who's spent 10+ years and 1,500+ videos teaching real families how to prepare. Every order helps fund that work.