The extent of delivery is subjected to the first picture, the other images are the display effect The air pump has low power consumption and a compression system of Advanced air, which can effectively and silently oxygenate your aquarium. Enrich your oxygen aquarium to help keep healthy fish. The oxygen pump can reliably provide years of service. It is silent, compact and light. Suitable for businesses at home. Power: 1.5 W Adjustment hole: The unique hole is not adjustable Gas size: 1 * 1.5L / min Cable length: 86cm Length * Width * Height: 94 * 53 * 38mm Use: 1. Cut the pipe into two sections or in small sections. The required length. 2. Insert the tube into the pump and connect it to the check valve. 3. Then remove the other part and connect it to the other end of the red valve and air stole. 4. Connect the pump to the power supply and turn on the power, do not forget to have the drip irrigation ring. Note: The direction of the output of the stop valve is at the end of the glued