Three cups of water
Three cups of water

8 Water Purifiers Preppers Trust for SHTF in 2025

Clean water is a must when the world goes sideways, and preppers know it’s job one in a SHTF scenario. Whether it’s a natural disaster, grid failure, or worse, you need a reliable way to purify water fast. We’ve rounded up eight water purifiers that preppers swear by in 2025—tough, practical, and ready for anything. I’ve been prepping for years, and once during a bad storm, my old Berkey saved my family when our tap water got funky. These are the real deal, no fluff.

Continue reading to learn more about the best water purifiers for preppers, written by Menachem Kossowsky.

Media Mentions

Why use a plastic bag when you can simply screw on this end cap, specifically designed for Sawyer water filters?

Zoe Gates
Editor at Backpacker

Media Mentions

In future, I’ll use gravity when I can, and squeeze when I have to.

Richard, aka "LowRange
Hiker

Media Mentions

For longer hikes, it’s convenient to carry a small backcountry water filter, such as a Sawyer Mini or Micro, which allows you to replenish your water from natural sources like streams or ponds.

Philip Werner
Author and Backpacker