SquareTrade © AP6.0... Cast aluminum pond de-icer. Designed to keep a small hole open to release harmful gases. Thermostatically controlled to operate only when necessary. For use in ponds of 50 to 600 gallons. Industry standard 10 ft supply cord. Fish and plant friendly. Safe in all ponds...

Cast aluminum pond de-icer. Designed to keep a small hole open to release harmful gases. Thermostatically controlled to operate only when necessary. For use in ponds of 50 to 600 gallons. Industry standard 10 ft supply cord. Fish and plant friendly. Safe in all ponds. Perfect for small koi and goldfish ponds. Features a 10' power cord and is UL-listed.