Atlantic Typhoon Air Pumps feature indoor/outdoor, continuous duty diaphragm compressors specifically designed for use all year long. Ideal for aerating your pond and water circulation in warm weather, these aerators are dependable for de-icing in order for important gas exchange in freezing weather, unlike floating de-icers that often fail under harsh conditions. Best of all, energy-efficient Typhoon Air Pumps draw only a tiny fraction of the power, and can easily be rebuilt for exceptionally long life!