The AquaPak solar pasteurizes four to five liters of water at a time, up to 15 liters per day. Simply fill with water and lay it on a flat surface in the sun. A built-in WAPI indicates when water is pasteurized, in as little as 2 hours. Weighs 6 ounces when empty.
August 27, 2008: The AquaPak is on backorder until September 18, 2008.