More stable airflow: Perfect for ventilation in freshwater and saltwater aquariums. The aquarium air pump adopts premium rubber cups and copper wire motor, and can create more stable airflow than traditional air pump, and it is more durable, more energy-saving. 4 Degree Adjustable Airflow: There is a button on the top of the air pump, you can adjust the airflow (1-4 degree) by pressing the button. At the same time, the light turns on. Blue light brightness indicates airflow. The brighter the light, the greater the airflow generated by the air pump. Ultra Quite ≤ 30dB: The air pump is powered by a stepless motor, which greatly reduces the noise generated by the motor during operation. Also, we have added 4 rubber feet on the base to absorb the noise generated by friction. The pump’s additional vibration and noise dampening systems further reduce noise, noise can be controlled within 30dB. Please note: Place the air pump about 25cm (10 inches) higher than the water level to prevent
