Water Filtration & Hydration

Water filters, purifiers, bottles, and hydration systems for backcountry adventures

Giardia ruins trips. Good water treatment doesn't. We've tested filters from the $20 Sawyer Squeeze to expensive UV purifiers, and honestly - the cheap stuff often works just as well. Here's what actually matters for staying healthy on the trail.

Our Top Picks

Best Overall

Sawyer Squeeze

$35, filters 100,000 gallons. The backpacker standard.

Best for Groups

Platypus GravityWorks 4L

Hang it, let gravity work. Great for camp.

Best Purifier

MSR Guardian

Removes viruses too. International travel ready.

Water Filtration Reviews

Detailed filter reviews coming soon! Testing flow rates and longevity.

Check out our other gear reviews while you wait.

Water Treatment Buying Guide

Filter vs Purifier

  • Filters: Remove bacteria and protozoa. Fine for North America/Europe.
  • Purifiers: Also remove viruses. Needed for international travel or questionable sources.

Treatment Types

  • Squeeze Filters: Lightweight, fast, most popular choice
  • Gravity Filters: Hands-free, great for groups, heavier
  • Pump Filters: Works in shallow water, more effort
  • UV (SteriPen): Fast, battery-dependent, clear water only
  • Chemical (Aquatabs): Ultralight backup, wait time required

Price Ranges

Squeeze filters: $20-50. Gravity filters: $70-130. Purifiers: $100-350. The Sawyer Squeeze at $35 is genuinely one of the best values in all of backpacking.