SteriPEN Ultra

1 review
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The SteriPen line offers a great new tech for h2o…

Rating: rated 3.5 of 5 stars
Source: bought it new
Price Paid: $70


The SteriPen line offers a great new tech for h2o off piste. After significant time spent researching the line of products I decided on the Ultra for two reasons. One; it is rechargeable (no peculiar batteries to find) and Two; it doesn't have the battery draining "flashlight" like the Freedom.


  • Easy to use/clean
  • Lightweight (previous filter was PUR)


  • H2O needs to be prefiltered
  • First use failed (subsequent uses have been flawless)

On a light and fast tour around Summit County Colorado this Memorial Day weekend I had good opportunity to goof around with the Ultra. With the low volume and minimal weight this was added to my fastpack kit with no noticeable interference to load distribution. The time saved at refills added up to over an hour.

Really happy with the lack of work as compared to my old PUR (before they named the model Katadyn). More time for running. I don't even have to take my pack off to fill up anymore!

As with any electronic device; learned the manual before setting off in to the wilderness. The smiley face is hilarious, but when snowflakes and lightbulbs start appearing on the screen it is helpful to know what they really mean.

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Retailers' Descriptions

Here's what other sites are saying:

When you're traveling or backpacking, put your trust in the rechargeable SteriPEN Ultra water purifier to be your source for potable water.


The SteriPEN Ultra Water Purifier System is a quick and effective way to purify water. Wait just 90 seconds for chemical free clean water. The Ultra System includes a prefilter for silty streams and features a rechargeable lithium battery to keep batteries out of the landfill and perform in cold conditions. Ultra-violet (UV) lamp safely sterilizes water, destroys over 99.9% of bacteria, viruses and protozoan cysts, including Giardia, E. Coli and Cryptosporidium without altering the taste or pH of water and without added chemicals Highly portable, easy to use, tapered shapes fits most bottles, including wide mouth Water sensors permit operation only when lamp is immersed in water, UV light cannot permeate the surface of water or pass through containers made of glass, plastic, metal or ceramics Lighter weight and more compact than pumps Intuitive, simple to use, and easy to clean To use: Remove the lamp cover, immerse the quartz-encased UV lamp, stir (auto-timed for 48 seconds), smiley face light indicates when it's safe to drink the water Battery set will purify 50 half-liters of water per charge 8,000 UV usages Includes carry pouch and micro-USB recharging cable Internal Lithium rechargeable battery (included)

- OMCgear

SteriPEN Ultra - Water Purifying DeviceThe SteriPEN Ultra - Water Purifying Device is one of the most advanced UV water purifiers in the world, delivering a seamless user experience. Now you are free to hike and travel wherever you want, without the need to carry or store your own water. SteriPEN is proven to be safe and effective, eliminating over 99.9% of bacteria, viruses and protozoa that cause water-borne illness. SteriPEN has earned the Water Quality Association's Gold Seal, certifying its effectiveness. It is rechargeable and easy to use - the smiley face tells you when the water is safe to drink. It is rechargeable for up to 8,000 liters, Ultra will deliver around 50 liters of UV purification before needing to power up. Use the SteriPEN Ultra - Water Purifying Device for safe travel and backpacking.

- SunnySports

Toss the iodine tablets and step up to the most advanced water purifier in the world-the SteriPEN Ultra. The Ultra keeps track of battery status, treatment success, and number of uses and tells you with an easy-to-read high-contrast OLED display. The internal battery is rechargeable via a computer, a standard wall outlet, or SteriPEN's portable solar panel (not included) for up to 8,000 liters of water.


Meet SteriPEN Ultra, the device that smiles back! Ultra is the most advanced UV water purifer in the world. Rechargeable for up to 8,000 liters, Ultra will deliver around 50 liters of UV purification before needing to power up. Redesigned firmware and interface deliver the fastest, most seamless user experience ever!. High-contrast, user-friendly OLED display. Internal battery is USB-rechargeable via computer, outlet or portable solar panel. 8,000-treatment lamp delivers years of purification. 3 Year Limited Warranty. USB-rechargeable internal battery. Industry-leading safety features. Package contents: SteriPEN Ultra, USB cord and neoprene carrying case. Weight (grams): 140. Dimensions: 18.6cm x 4.1cm x 3.2 cm (7.3 x 1.6 x 1.3 in.). Battery Type: Internal Lithium Rechargeable. Battery Life: Up to 50 treatments per charge. UV Lamp Life: 8,000 Treatments. Minimum Bottle Diameter: 20mm (0.8 inches). Filter Compatibility: Tapered End (PreFilter and FitsAll). Batteries Included

- Tahoe Mountain Sports