The word "awesome" is not used very often to describe a water filter, but the description is apt when referring to the Rehydr8 concept.

Apparently, the filter would use the magic of thermoacoustic refrigeration—a process that relies on sound waves and an environmentally safe gas like helium to generate cooling. Furthermore, each bottle features a built-in, powerless thermometer to display the temperature and ensure that you are getting a perfectly chilled container of water.

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Is it an absurdly eco-friendly and elaborate way to replicate what could be done cheaply with a simple pitcher filter and some cubes of ice? Yes, yes it is. But it sure looks like the kind of water cooler that I would like to gossip around at work. [Yanko via Ubergizmo]