This Shanda diaphragm pump is perfect for aquariums and hydroponics. With one outlet and a flow rate of 48 gallons per hour or 180 liters per hour, it can efficiently oxygenate your water without disturbing your fish or plants. The adjustable feature allows you to control the output to meet your specific needs. It has a tank capacity of 50 gallons and can work with all types of water. This air pump is a reliable and quiet solution for your aquarium or hydroponic system.