AquaSun Ozone offers two ozone generation units. The ASO250 micro system is available for multiple applications, such as water features, small spas and fishponds or to create potable water. This unit must have a pump or be used with a Venturi system. The powder-coated aluminum case is ideal for mounting in tight and hard-to-get-to places and features a convenient electrical interface plug (120V/60Hz). The Nature Kleen is a safe, portable, energy efficient water purification system that produces tri-atomic oxygen when combined with water, releasing oxygen to clean and kill bacteria and viruses by oxidation. The system breaks down residual trace amounts of toxic chemicals and pathogens and kills bacteria including E. coli on meat, fish, poultry, fruits and vegetables. The unit is 120 volt, 60 Hz, measures three by five by nine inches (7.62 cm x 12.70 cm x 22.86 cm) and weighs only two lbs. (0.91 kg)[email protected]