This dual usage 300 watt pond de-icer can be a submersible pond heater for ponds up to 300 gallons, or used as a de-icer (with the optional floating attachment) for ponds up to 1600 gallons. 15' cord allows maximum reach. Thermostatically controlled to shut off at 45°F, will not burn preformed ponds or liners. UL and CUL listed. One year manufacturer's warranty. Use this new de-icer as a submersible pond heater or with the optional float attachment.