The Laguna Power Heat 500 Watt De-icer maintains a vent hole at the pond surface for proper gas exchange. This de-icer is suitable for garden zones 1 to 8 (-6 C / 20 F and below). The The Laguna Power Heat 500 Watt De-icer utilizes a dual zone integrated thermostats and is safe for plastic and rubber pond liners. This de-icer will not harm your fish or plants. Comes with a 1 year warranty.
NOTE: Mineral build-up can affect the performance of the de-icer and is not covered under the manufacturer warranty. Deicers will ship via USPS