The Steripen Classic 3 UV Water Purifier is the best selling portable UV purifier of all time and has been trusted on mountains and trails for over 15 years. Since 1999, hundreds of thousands of people have ensured their drinking water is safe and avoided ruined adventures.

• Ergonomic design w/ new easy-to-remove twist-off cap
• Destroys over 99.9% of waterborne microorganisms that cause illness
• Just press button to activate, place in water & stir
• LED indicators flash to let you know when water is safe to drink
• Enhanced LEDs indicate treatment size & status of batteries & lamp
• Watertight, no more worries about dropping in a bottle or stream
• Powered by alkaline, lithium, or NiMH batteries (not included)
• 3-year manufacturer limited warranty