• STERIPEN Classic 3 with Pre-Filter

STERIPEN Classic 3 with Pre-Filter


Trusted on mountains and trails for over 15 years, SteriPEN® Classic is the best-selling portable UV purifier of all time. Since 1999, hundreds of thousands of people have ensured their drinking water is safe and avoided ruined adventures with SteriPEN® Classic. The next generation of Classic operates on four AA batteries. With one set of alkaline batteries, the Classic 3 purifies up to 50 litres. Supercharge your Classic 3 with lithium batteries and treat up to 150 litres. With a lamp life of up to 8,000 litres, you can be drinking safe water for years!


  • Ergonomic design with a new easy-to-remove twist-off cap.

  • The first SteriPEN to work effectively with alkaline batteries. Can be powered by alkaline, lithium, or NiMH batteries.

  • Enhanced LEDs indicate treatment size and status of batteries and lamp.

  • Watertight. No more worries about dropping your Classic 3 in a bottle or stream.

  • So easy … just activate, place in water, and stir. LED indicators flash to let you know when water is safe to drink.

  • Includes SteriPEN Pre-filter and Pouch



Batteries: 4 x AA Lithium Batteries (not included)

Battery Life (0.5L/1.0L): 200/100

Dimensions: 93mm (H) x 38mm (W) x 38mm (D)

Weight: 162g

Lamp Life (No. of Treatments): 8000 (0.5L)