Become a Member

Get access to more than 30 brands, premium video, exclusive content, events, mapping, and more.

Already have an account? Sign In

Become a Member

Get access to more than 30 brands, premium video, exclusive content, events, mapping, and more.

Already have an account? Sign In

Brands

Gear Sweepstakes

Win the Best Water Purifier Out There

Lock Icon

Unlock this article and more benefits with 25% off.

Already have an Outside Account? Sign in

Outside+ Logo

25% Off Outside+.
$4.99/month $3.75/month*

Get the one subscription to fuel all your adventures.


  • Map your next adventure with our premium GPS apps: Gaia GPS Premium and Trailforks Pro.
  • Read unlimited digital content from 15+ brands, including Outside Magazine, Triathlete, Ski, Trail Runner, and VeloNews.
  • Watch 600+ hours of endurance challenges, cycling and skiing action, and travel documentaries.
  • Learn from the pros with expert-led online courses.
Join Outside+


*Outside memberships are billed annually. You may cancel your membership at anytime, but no refunds will be issued for payments already made. Upon cancellation, you will have access to your membership through the end of your paid year. More Details

No matter how cloudy, funky, or otherwise gross the water you find, the MSR Guardian Gravity Purifier will make it clean and tasty.

We were blown away by this year’s innovation: taking a purifier we already love and making it work by itself. It was an easy pick for our Editors’ Choice Awards this year. And now, thanks to our friends at MSR, one can be yours. Check out our full review below, then fill out the form to enter our sweepstakes. One winner, chosen at random on April 13, will receive the purifier. Safe to say you’ll never encounter water that’s too gross to be made drinkable (exception: salt) and this gravity-powered filter takes all the bad parts out of both the water and the filtering process itself.

MSR Guardian Gravity Purifier

Filtering water often starts with drawing straws. Then, the unlucky one gathers vessels, makes the trek to water to pump-and-futz, and lugs all that clean drink back to camp. Sorry, loser! With the Guardian Gravity Purifier, however, everyone wins. Fill its 10-liter reservoir (conveniently labeled “Dirty Water”), hang it on a branch (or as high above the filter and bottle adapter as you can), loosen the hose clamp, and let gravity do its thing. Buy Now / Read the Full Review


  
    

How to Pack for Backcountry Skiing

Get to know the winter safety gear you need in your pack.

Keywords: