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Steripen Classic & Pre Filter

lizing the same technology used to purify water in municipal treatment facilities, hospitals and water-bottling plants, the SteriPEN Classic is the only portable water purifier that destroys viruses, bacteria and cysts, including Giardia and Cryptosporidium, by using high-energy Ultraviolet (UV) light. SteriPEN Classic is easy to operate and purifies water quickly and efficiently without the need for chemicals or pumping.

Thanks to the SteriPEN Classic, purifying water is a cinch. Simply fill a 16 oz. or 32 oz. glass, plastic, ceramic or metal container with clear water, push the SteriPEN Classic button once for 32 oz. or twice for 16 oz., dip it in the container and stir slightly to agitate the water. Ultraviolet light is invisible to the human eye, but a visible blue light indicates that the SteriPEN Classic is working and shuts off as soon as a full dose has been delivered. The SteriPEN Classic purifies 16 oz. of water in less than a minute and 32 oz. in 90 seconds! The UV light breaks down the DNA of viruses, bacteria and cysts, rendering them harmless.

Because the penetration of UV light can be limited by discoloration, solids and debris, it is important that clear, unfrozen water be used. The SteriPEN Water Bottle Pre-Filter is included to filter particulate-filled water before UV treatment takes place.

The SteriPEN Classic requires 4 AA batteries, sold separately. Alkaline or lithium batteries will work in the SteriPEN Classic, but rechargeable Nickel Metal Hydride batteries are your best option, as they last far longer and outperform other batteries in cold temperatures. The SteriPEN Classic's electronics are designed to activate only as long as there is enough battery power available to produce the required UV dosage, so there is no risk of an inadequate dose as batteries run low.

The ultraviolet lamp used by the SteriPEN Classic is very durable, providing up to 5,000 doses. To ensure that the SteriPEN Classic provides optimal effectiveness, the lamp is automatically disabled

Style number: TISPPF-RP-I

Steripen Classic & Pre Filter
  • Steripen Classic & Pre Filter


ex GST NZ$121.65

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Delivery & Returns


We ship throughout the world using NZ Post. FREE delivery to New Zealand and Australia on all orders. Our awesome dispatch team aims to process your orders within 24 hours Monday to Friday and we'll advise you if there's any delay due to sourcing your item from another store.


Want your gear fast? No hassle select express post at the checkout to get delivery of your order as fast as possible. International Express Track and Trace delivers to Australia in 2-3 days, 1-2 day delivery available within New Zealand. If you're in a remote area you'll need to be a little more patient with deliveries.


Wrong size? Not quite what you wanted? No worries. You can return your unused purchase in up to 60 days from the day you received it. Simply use the return slip enclosed with your package and ship back to us for an exchange or refund.


We've been selling adventure gear online for 14 years. We live in the great southern alps and our team test our gear daily. Talk to us and we'll help you find the perfect clothing or gear for your adventure.
Call: (03) 450 2118
Email: sales@outsidesports.co.nz
Between 8am - 5pm Monday to Friday.


  • Proven ultraviolet technology is effective against viruses, bacteria and cysts, including Giardia and Cryptosporidium
  • No chemicals, no pumping
  • Push-button start
  • Automatic dosage for 16 oz or 32 oz
  • Water resistant
  • Powered by 4 AA batteries, sold separately
  • Water bottle pre-filter included
  • Carrying case included
  • Limited lifetime warranty

Tech Specs

Recommended Use: Camping, Backpacking, Travel or Emergency Use
Weight: 6.5-8 oz. (depending on batteries used)
Dimensions: 7.6" x 1.5" x 1.5"
Field Maintainable: Yes
Filter Material: Ultraviolet (UV) light
Removes: Viruses, Bacteria and Cysts, including Giardia and Cryptosporidium
Flow Rate: 32 oz. in 90 seconds
Warranty: Limited Lifetime Warranty


  • 5 Stars

  • Ray T. – Spring Branch TX

  • Likes: I have used mine a couple dozen times now and it seems to be very effective at disabling all the little bad guys in the water. I always use the SteriPen prefilter to ensure I have particulate free water. Use lithium AA batteries, they weigh less, provide more power, and have a long shelf life. With batteries and case mine weighs 6.48 oz.

    This is the way to go for quick safe water. Chemicals take a long time and filters are a pain.

  • Dislikes: A little heavy, the Adventure Opti weighs less and is just as effective.



  • 5 Stars

    Stefanie R. – Lacey WA

    Likes: I can't believe I never rated my steripen! I've had it for a while now, and I love it. I've not had any failures, although I've carried iodine tablets as backup.

    Dislikes: It can be time-consuming. I sterilize one liter at a time and then transfer to my three-liter camelback.

  • 5 stars

  • Anonymous Backcountry Edge Customer

  • Likes: Easy to use. Weight and size are not too much for inclusion in backpacking. Works great will all small mouth water bottles.

  • Dislikes: Leaves the water with a very slight 'burnt' flavor. Could be because the light is so new and the water is extremly clear/clean prior to use. Wouldn't discourage me from purchasing the item though. Overall it is a great product.

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