* Minimum bottle diameter: 22 mm
* Weight (with batteries): 178 g
* Dimensions: 4.3 x 4.3 x 18.6 cm
* Treatment size: ½ or 1 liter
* Treatment time: 48 or 90 seconds
* Lamp Life: 8000 activations
* Battery: 4 AA batteries or Rechargeable NiMH
* Technology: UV water purifier
* Effect: Eliminates bacteria, protozoa and viruses
* Alkaline, Lithium or Rechargeable NiMH
* Kit contains: Steripen Pre-Filter for removing debris from water and neoprene carrying case

Facts:
* Trusted on mountains and trails for over 15 years, the Steripen Classic 3 is the best-selling portable UV purifier of all time.
* Steripen Classic 3’s enhanced LED indicator panel lets you know treatment size and status of batteries and UV lamp.
* The Steripen Classic 3 is sleek and ergonomic with an easy-to-remove twist-off lamp cover.
* The 40×40 micron screen Pre-Filter fits perfectly on wide-mouth one liter water bottles and removes particulates that can get in the way of UV light in water. The Pre-Filter is designed to be stored directly on a wide mouth bottle and the Steripen Classic 3 fits perfectly in the filter. Just insert the Steripen Classic 3 in the filter opening, turn the bottle upside down, and gently rock to circulate light throughout bottle.
* Ultraviolet (UV-C) light rays safely purify clear water by destroying 99.9% of protozoa (including Giardia and Cryptosporidia), bacteria and even viruses
* When the treatment is complete, LED indicators flash to let you know that the water is safe to drink.
* Approximate number of activations using the various battery chemistries:Alkaline (25), Lithium (150) or Rechargeable NiMH (100)