Purifying water for hiking, camping, and outdoor adventures since 2001!
Thousands of outdoor enthusiasts all over the world have trusted SteriPEN for many years.

The first and fastest portable UV water purifier, SteriPEN’s speed, effectiveness and portability have impressed end users and media alike. Backpacker Magazine, Newsweek, and the Today Show have featured SteriPEN as a powerful, user-friendly alternative to pumps, chemicals and filters. TIME Magazine named the SteriPEN one of the “Best Inventions of the Year” in 2001.

Spending lots of time outdoor? The outdoor line keeps you hydrated when on the go. Outdoor SteriPENs treat up to one liter of water, last for 8,000 treatments, and are powered by internal rechargeable, CR123 batteries, or AA batteries.