SteriPEN Sidewinder- The first battery-free UV water purifier. Sidewinder gives you the freedom to purify water anywhere – camping trips, journeys abroad or in emergency situations such as floods, power outages, earthquakes or hurricanes.

With a lifetime of 8,000 water purifying treatments and no replacement parts necessary, Sidewinder is ideal for travel, and an ever-reliable tool for emergency preparedness.

Powered by a hand crank, Sidewinder Water Purifier can purify 1 litre of water in 90 seconds, destroying waterborne bacteria, viruses and protozoa such as giardia and cryptosporidium.

SteriPEN Sidewinder comes with a BPA-free 1 Litre bottle and pre-filter for use prior to treatment if water contains any debris or particulates, so it’s ready with everything you need to purify water whether you’re on a multi-week trek in Nepal, or volunteering in a remote African village.

Get yourself a Sidewinder and there’s no need for bottled water for the next … 2,000 gallons. The landfills will thank you!

How It Works

Using Sidewinder is easy as 1-2-3; it takes 90 seconds and just a bit of muscle power!

Step 1

Attach the Sidewinder to the BPA-free 1 Litre bottle.

Step 2

Flip Assembly & Unfold Handle.

Give the water a couple of swirls to create a “vortex.”

Step 3

Crank Handle—you’ll see red flashing LED until cranking reaches optimum speed range. Keep on cranking until LED flashes green to let you know that water purification is complete.

SteriPEN Sidewinder gives people the freedom to traverse the globe, travelling to even the remotest corners of the world, with confidence they'll have a source of safe drinking water.