Improve water quality with the benefits of aeration! The Pro-Clear Aire™ Compressor is designed for the demanding job of 24 hour operation. The dual linear diaphragm is designed for maximum airflow while being quiet and energy-efficient. The oil-less design makes them ideal for pond aeration and with few moving parts, allows for simple routine maintenance. 1000 to 7500 gallon ponds, 5' depth, 25 watts