The Farm Innovators Cast Aluminum Submergible Plastic Tank De-Icer can help to provide all of your animals ice-free water this winter. Made of cast aluminum, this de-icer is efficient and safe. A heavy-duty anti-chew cord protector helps to protect even your most curious animals. The de-icer is thermostatically controlled, so it will only operate when needed. The large diameter heating element is open in the middle to improve heat circulation for better results.