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SteriPEN Classic 3 Water Purifier with Pre-Filter

SKU# STP_10007

The water tight SteriPEN® Classic 3 is the next generation of the Classic which has been used on mountains and trails for over 15 years. It operates on four AA batteries which can be alkaline, lithium or rechargeable NiMH, the minimum number of treatments being 50 litres of water and a UV lamp that lasts for 8000 activations. It can treat a litre of water in just 90 seconds, killing 99.9% of bacteria, viruses and protozoa that cause water-borne illness. Easy to use with a new easy to remove twist off cap and an LED display that shows treatment size and status of the batteries and UV lamp and flashes when the treatment is done.

Availability: In stock



  • Designed to treat 500ml to 1 litre of water at a time (if you have more then separate into 1 litre or less amounts)
  • Water tight
  • Can be used with alkaline, lithium or rechargeable NiMH batteries (not included)
  • LED indicator panel shows treatment size and status of the batteries and lamp
  • The optical water sensor means this device will only work when immersed in water
  • Requires no pumping, chemicals, test strips, extended time-keeping or filters; leaves no aftertaste, will not clog and does not require lubrication
  • Uses UV light rays instead of chemicals to purify water for drinking
  • Ultraviolet (UV-C) light rays safely sterilise clear water by destroying protozoa (including Giardia and Cryptosporidium), bacteria and even viruses; can also be used to treat turbid, murky or cloudy water in an emergency by treating the volume of water twice - if water less even less clear filter the water first for best results
  • When operating properly the Classic 3 will emit a visible light as well as UV light so if you can't see a light it needs to be repaired before further use
  • Minimum bottle diameter = 22mm
  • Comes with a neoprene case and the SteriPEN® PreFilter:
    • 40 x 40 micron screen
    • Fits/stores on wide mouth 1 litre water bottles
    • Removes particulates that can get in the way of UV light in water
  • Classic 3 fits perfectly in the filter - insert in the filter opening, turn bottle upside down and gently rock to circulate light throughout the bottle
  • Has the US Water Quality Association's Gold Seal certifying that SteriPEN' purifies water safely and effectively


Dimensions 18.5 x 4.3 x 4.3cm
Removes/Destroys Protozoa, bacteria and viruses
Batteries 4 x AA batteries - alkaline, lithium or rechargeable NiMH (not included)
UV Lamp Life 8000 activations
Weight with Batteries 179g with alkaline batteries
Weight without Batteries 82g


  • While Classic 3's battery compartment is designed to be highly water-resistant, it is not waterproof. Avoid submerging Classic 3's battery end in water.
  • Classic 3's battery performance may be adversely affected by cold weather. In temperatures below 0°C carry the unit close to your body or warm up batteries before use. If batteries are too cold, Classic 3's LED indicator may give low battery signal. Warm up batteries and treat again.
  • Make sure to dry after each use.
  • When not in use, Classic 3 should be kept in a safe place that is clean and dry. It should not be exposed to temperatures above 49°C or below -20°C.
  • To clean Classic 3, wash with a soft cloth and a mild soap solution. Rinse soap from device and dry with a clean, soft cloth.
  • If Classic 3's bulb is cracked, chipped or damaged, don't use it. Return it to the store or contact SteriPEN for repair.< /li>


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Date Score Customer Comment Our Response
07-Feb-2019 Product:

Looks like it can do the job, but wont know till April 2019.
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