About this item An air pumping system designed for hydroponics settings to improve growth by enrichening oxygen levels. Innovative electromagnetic motor maximizes air pressure and volume while reducing energy consumption. Adjustable turn dial delivers full control of airflow levels for a wide array of aeration applications. Heavy-duty shell and internal muffler dampen noise to allow for continuous ultra-quiet operation. Air tubing with check valve supplies secure one-way oxygenation and flexible installation options.