Deal of the Week: Sawyer Squeeze Water Filter
This tried-and-true filter is guaranteed to last.
Water Purifiers
Finding clean water in the backcountry can be a challenge, and chancing getting sick from potentially contaminated streams and lakes is never worth the risk. Find the best water purification system for your next backcountry trip with expert advice from Backpacker’s gear experts.
Latest in Water Purifiers
What We’re Testing Now: One of The Best Water Filters We’ve Ever Used
Finally: A filter good enough to make you stop dreading water duty.
CrazyCap
The best purifier of 2021.
Sawyer Tap Filter
The best filter for car camping of 2021.
Editors’ Choice 2021: MSR Guardian Gravity Purifier
Set it and forget it with this gravity-powered water purifier.
The 6 Best Water Filters for Every Type of Adventure
On short trips or epic expeditions, clean water is a must. Here's how to pick the right filter or purifier for you.
The 8 Best Water Filters for Backpackers
Ultralight, ultrafast, and ultraeffective—the best new water treatment devices do the job better than ever.
The Best Backpacking Water Filters
Nothing ruins a trip quicker than giardia. Stay healthy with these versatile filters.
The 5 Best Hydration Systems of 2018
A heavy-duty insulated bottle, a versatile filter, and more round out our picks for the best backpacking hydration gear of the year.
MSR TrailShot
On-the-go filtration
Editors' Choice Award 2017: Katadyn BeFree
No Fuss Filter
Grayl Ultralight
Purest water
SteriPEN Ultra
Purify water fast.
Katadyn BeFree
Mini filter
MSR AutoFlow
The beauty of gravity filters is that, well, gravity does all the work. We’ve tried them all, and this one is the best.
Gear Review: MSR Aquatabs Water Treatment
Go ultralight while staying healthy with the MSR Aquatabs.
Gear Review: Platypus GravityWorks 4.0L Water Treatment
Spread the joy of clean water with this group-friendly filtration system from Platypus.
Gear Review: SteriPen Ultra Water Treatment
Get clean water fast with this easy-to-use SteriPen Ultra.
Holiday Gift Guide 2012: CamelBak All Clear UV Water Purification System
A fast, integrated, and rechargeable water purifier.