Adjustable Flow Rate: This submersible pump is equipped with an adjustment knob that can change the water flow rate according to your needs. The maximum water flow rate is 132GPH (500L/H), and the maximum lifting height is 1.2m (4ft). Silent Design: This fountain pump adopts a lasting and reliable motor with a noise level of less than 18 decibels, ensuring a quiet operating environment. Detachable design, convenient to maintain without any tools, saving time and effort. Submersible Pump: The water pump with light will attract your fish, constantly circulating and inflating the water to make your aquicolous life healthier, suitable for both freshwater and seawater. Compact design, easy to place and conceal. Suction Cups and Nozzle: This submersible pump is equipped with 4 sturdy suction cups, which can be installed on glass, plate, or other flat surfaces for convenience and stability. Equipped with a nozzle with a diameter of 12mm (0.47in). Secure and Practical: This water pump has