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SteriPEN Adventurer Opti

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Don't worry though, we have a lot more Water Purification in stock than that.

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Pen mightier than bacteria.

Destroy harmful waterborne bacteria in your water with the Hydro-Photon SteriPEN Adventurer Opti. The SteriPEN uses UV light to kill giardia, cryptosporidium, bacteria, and viruses in just a few seconds, so you can stay hydrated on the trail without having to worry about getting sick. And at a scant 3.6 ounces and 6 inches long, the Adventurer Opti won't weigh you down or use up a ton of valuable pack space.


  • Lightweight SteriPen purifies water on backpacking trips
  • Stir UV light in 1 or 1/2 liter of water for 90 seconds
  • Destroys 99.9% of viruses, bacteria, and protozoa
  • Runs on two included CR123 batteries
  • Replaceable lamp works for 8,000 treatments
  • Item #HYD0017
Purifying Element
UV light
Lamp Life
8,000 treatments
Claimed Weight
with batteries 3.6 oz
Recommended Use
hiking, camping
Manufacturer Warranty
limited lifetime