SteriPen Ultra Water Purifier


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Rocksolid guarantee

Shop with confidence. If it’s not working out, you can return it (consumables, electronics, undergarments and swimwear excluded).
Really. If it's not up to snuff after you use it (a couple times) you can still bring it back. It lasts longer than 30 days, but not forever. We'll be fair about it.


This compact SteriPEN® UV purifier is USB rechargeable, letting you charge it from computers, wall or car USB chargers, and many solar panels. The tapered neck fits into commercial single-use water bottles, so you can disinfect bottles bought from dodgy sources, and refill that bottle from the tap at your hostel.

  • Immerse the lamp and stir. Shortwave ultraviolet light disrupts the DNA of bacteria, viruses, and protozoa, rendering them harmless. Smile icon lets you know when your water is safe to drink
  • Treats 0.5L in 48 seconds. 1L volumes can be disinfected by treating twice
  • UV lamp supplies about 8000 1L treatments
  • Rechargeable lithium-ion battery treats about 50L per charge
  • Charge times are 2–3 hours from the wall, 3–5 hours via USB
  • Note: UV devices are intended for treating clear water. They have been shown to reduce microbial contamination in mildly turbid water. If you are treating highly turbid water, follow all package instruction carefully and consider pre-filtering the water

Tech specs

Ideal for
  • Travel
Shortwave UV light
Dimensions13 x 3.5cm
BatteriesLithium-ion (included)
Made inChina

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3.1 out of 5 stars with 20 reviews for SteriPen Ultra Water Purifier

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