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SteriPEN Sidewinder Battery-Free UV Water Purifier  SteriPEN Sidewinder Battery-Free UV Water Purifier 5188X_2 SteriPEN Sidewinder Battery-Free UV Water Purifier 5188X_3 SteriPEN Sidewinder Battery-Free UV Water Purifier
$64.95 Compare at $99.95 Save 35%
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Information about SteriPEN Sidewinder Battery-Free UV Water Purifier

Specs about SteriPEN Sidewinder Battery-Free UV Water Purifier

  • Material: Composite
  • Weight: 1 lb. 8 oz.
  • Dimensions: 9X5X3-1/2" (HxWxD)
  • Made in China
  • US shipments only

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Most Helpful 5-Star Review

Reviewed by K from Idaho on Tuesday, March 4, 2014
Who needs batteries. This has a built in generator to power the electronics, which is perfect for those times when you need sterilized water and need to save your batteries for other items (may it be while camping for extended time, or during emergencies). I purchased two of these and tested them bo... Read More
3.666666 5 Based on 18 reviews: Overall:
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  • Reviewed by Ianb from Colorado on Thursday, October 16, 2014
    I bought this model since I din't want to rely on batteries while on extended camping and climbing trips. As soon as I opened the package I was surprised at how large the whole system was. More importantly, the ONLY way to protect the exposed UV bulb is by keeping the water bottle that came with it screwed to the base unit. This creates a package as big as 2 liter water bottles together. If you don't keep the water bottle attached, the UV bulb is completely exposed and will likely break the first time you pack it anywhere. It may work fine if all you need it for is car camping where space is not an issue, otherwise stck to the small, light battery operated model.
  • Reviewed by lovesmesomeSTP from Oregon on Tuesday, September 23, 2014
    With a coupon, got this for a SONG! Bought three, want to buy more as gifts. Ya' just never know... this may come in handy some terrible day, and is small enough for easy stow, should one require running quickly away and hiding from the non-zombie cannibals ;). And no batteries needed? That's just too cool.
  • 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
  • Reviewed by Johnny the Hiker from New Mexico on Thursday, March 27, 2014
    Since this item was purchased for an emergency situation there is little I can say except if it works as described I will be very happy during that emergency that has not happened as yet.
  • Reviewed by K from Idaho on Tuesday, March 4, 2014
    Who needs batteries. This has a built in generator to power the electronics, which is perfect for those times when you need sterilized water and need to save your batteries for other items (may it be while camping for extended time, or during emergencies). I purchased two of these and tested them both. They both worked without any issues.

    As for the ability to crank these things for the 90 seconds, I had no issues. Let me tell you why...
    At first, I cranked it as shown in the video. This would be with the crank on the side and my entire arm moving the crank (should and elbow joints moving). This did become a bit tiresome quickly. Noticing this, I rotated the unit so that the crank was directly facing me. I then rotated the crank so that only my elbow join was moving. This was much easier to crank (using a stronger muscle) and I was easily able to finish cranking through the 90 seconds and also do another liter of water for another 90 seconds. For people struggling to crank through the 90 seconds, try rotating the unit and crank it from the end.

    I recommend this to everyone.

    Now my only small issue is that the bulb is good for 8000 usages, after which I cannot purchase replacement bulbs. The company will not sell them because they claim a special technician is required, so you must send the entire unit to them so they can replace it for you at $20 plus shipping (cost at the time of writing, may go up or down). I am an engineer/electrician for trade and am sure I can replace the bulb myself. Still, I cannot purchase the bulbs as they won't sell them to me. My guess is that they are holding onto an extra way to make more money.
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