1. The air-o2 aerator is made of hi-grade material, utilizing modern technology for trouble-free operations 2. Electric motor, with waterproof throwing circle design and as toshiba type fan with good heat-sink. 3. Precision casting stainless steel #316 propeller, grinding and polishing surface, high function and long lasting performance. 4. Adjustable angle propeller, providing strong water current and fast aeration, for long-term and emergency aeration from water surface to pond bottom. With proper placement can provide the complete mix and eliminate dead ends. 5. Can bring the pond bottom impurities emerging and easy to clear, help waste decomposition. 6. The horizontal water movement will keep solid in suspension which accelerates the bacteriological activities. 7. 35% and more in energy savings over the conventional diffuser and surface aerators are reported and maintenance cost minimized. Mounting flexibility and easy installation. 8. High-density polyethylene (hdpe) float. Capacity of 20ft container: 80 units