SteriPEN UV water purifiers are the quick, light and easy way to ensure safe drinking water. Bottled water manufacturers and major cities around the world harness the power of UV light to make sure their water is safe to drink; with SteriPEN, so can you! SteriPEN water purifiers go everywhere; whether you’re traveling the world, venturing deep into the backcountry or facing a natural disaster, you can depend on a low-profile and lightweight SteriPEN UV water purifier to kill 99.9% of all viruses, bacteria and protozoa. SteriPEN has received th ... Learn more about SteriPENe Water Quality Association’s (WQA) Gold Seal, certifying that SteriPEN purifies water safely and effectively. Furthermore, all SteriPEN water purifiers have been tested by the WQA against the U.S. EPA Microbiological Water Purifier Standard. With SteriPEN, you can feel confident that you’ll get safe drinking water no matter where you are or what emergency you face. ... Less
Average Rating based on 4 reviews
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  • Verified Buyer Reviewed by Jules from California on Friday, July 25, 2014
    This was a pretty good price for a good product. We just took it on a backpacking trip about a week ago. Given that is was in N. America, virus's really aren't a big worry, so it was just for additional peace of mind. We used the Sawyer Squeeze filter first to filter a liter bottle of water, then used the SteriPEN in that filtered water for additional purification. The filter would have probably been enough to keep the water safe. The SteriPEN goes above and beyond the filter in that it takes care of virus's that the filter can't get, though, like I said, those really aren't much of a worry in N. America. The SteriPEN functioned just fine. We ended up treating just about 2+ gallons of water for the 3-day weekend trip for two people, and then filled both our 3L CamelBak bladders with more treated water for the hike back out, so maybe about 4 gallons of water total. You just press the button once (for 1L, twice for 1/2L) with the wand in the water, watch the blue/purple light come on, and stir it around (keep the wand covered in water) until the light turns off in the wand. The little LED light on the handle shows green to tell you it was successfully treated, or red if you need to try again. There's a light code key in the instructions. Of course I really have no idea whether or not there were really any virus's in there or not to begin with, so I can't really tell you whether it gave us added protection or not, but I know it felt good to know that, not only did we filter out what we could, but then purified it additionally after that. Worth the price, especially if you travel out of the country - I wouldn't go without this little device.
  • Verified Buyer Reviewed by Anonymous from Taos, NM on Saturday, July 19, 2014
    I don't usually rate items without field testing first, but this item comes with good reviews from around the internet. It is also very light and does not take up much room in my sling pack. I make trips down into the Rio Grande Gorge near my home in Taos where most hikes down to the river are about 800' elevation gain/loss over a mile and a half and it's a long, tough day of fishing and hiking. Finally, the purifier could be a life saver if dehydration becomes severe.

  • Verified Buyer Reviewed by Evan from Newport Coast, CA on Sunday, June 29, 2014
    Beautifully made, compact, works as advertised. A must for travel.
  • Verified Buyer Reviewed by Sierras hiker from Sierra Nevadas, CA on Thursday, June 12, 2014
    I purchased this item for an upcoming trip out of the country. Although I am a massage therapist, in good shape with "guns", this item is just too much work...Sending back
  • Verified Buyer Reviewed by Dave the roadtripper from Colorado on Wednesday, June 4, 2014
    This was quite inexpensive and is the same as the steripen adventurer but only that it has a shorter lifespan.
  • Reviewed by Nomad from White Salmon, WA on Tuesday, June 3, 2014
    I work and travel in developing countries and this is a great kit. The filter lid optimizes the performance of the SteriPEN by removing particles that can obstruct the purifying UV rays, so this set is a step up from the SteriPEN alone. The bottle is a bit bulky, but everything nests inside and the weight is reasonable. I wish STP had more of these; I'd buy them as gifts.
  • Verified Buyer Reviewed by L.B. from Portland, OR on Tuesday, June 3, 2014
    I hate to write a one-star review but the item was not functioning when I tried it straight out of the packaging. I called the manufacturer to troubleshoot, but I apparently just got a dud. Sierra is out of stock, so a great deal turned into a great disappointment. I'll not purchase technical/electronic items like this in future from the site.
  • Verified Buyer Reviewed by the one from Dry ARIZONA on Monday, April 28, 2014
    Just what I was looking for thanks
  • Verified Buyer Reviewed by David from Ok on Wednesday, April 9, 2014
    Highest quality. Very functional set that will all nest together. Comes with batteries.
  • Reviewed by isisxvx from New York on Tuesday, April 1, 2014
    This is the best thing ever! Not only did the kids love trying it out but its handy to have around when your flooded and w/o electricity and have to get water from the creek running beside your house!!
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