Farm Innovators Model H-419 Ice Chaser Cast Aluminum Submergible Tank De-Icer, 1,500-Watt Constructed of patented cast aluminum for ultimate efficiency and safety Thermostatically controlled to operate only when necessary Heavy-duty anti-chew cord protector Safe in plastic Made in the use Submergible tank de-icer Thermostatically controlled to operate only when necessary Heavy-duty "anti-chew" cord protector Safe in plastic tanks 1,500 Watts