An air pump is useful for powering air stones (porous stones attached to the air pump with tubing) to supply supplemental aeration and circulation and to promote gas exchange (oxygen in, carbon dioxide out) at the water surface. Certain filters such as under-gravel filters are also powered with air pumps.   Input: 220V-240V Output: 5W Double outlet Power Ajustment: High & Low   Direction of Use: ✅ Put above the water on the dry place when used, otherwise the water will move backward to damage the pump. ✅ If the pump falls into the water, please cut off the power supply immediately to avoid electric shock.   Note: ✅ Please allow 1-3 mm error due to manual measurement. ✅ Due to the many variations in monitors and browsers, actual colors may appear different on different monitors.   Package Includes:

1x Aquarium Air Pump