Kasco De-icer Agitators push warm bottom water to the surface creating an ice-free area of protection around your boat, dock, pier, or other in-water property. Kasco de-icers come with (2) 20 ft. suspension ropes and are available in 1/2 and 3/4 HP unit sizes. Please call us at 705.906.9396 for further information to determine the model suitable for you.