Ultra Quiet Aquarium Air Pump, 5.5W Adjustable Aquarium Air Pump for Aquariums 400L, with All Accessories 40dB

Ultra Silent Adjustable Air Pump. Quiet aquarium oxygen pump has a continuous adjustment knob to adjust the air volume according to your wishes, Power: 5.5W, Air volume: 2 x 2 litres/minute, pressure 0.02MPa. Fits 60 to 400 litre tanks up to 1.5 m deep. Silence and Vibration Resistance. The air pump housing is made of 4mm thick ABS plastic, which can block the noise of the internal motor. 8 rubber pads on the bottom of the motor reduce the amplitude of vibration. Both air chambers reduce noise at the source. After isolating the air pump noise three times, the noise can be controlled below 40dB, which is very quiet. Oxygen Enriched Water. Increases the dissolved oxygen content of water. Ensure aquatic organisms receive sufficient oxygen to ensure vital activities such as breathing and metabolism. Complete Accessories. This dual outlet aquarium air pump comes with 2*1.5m air tubes, 2*50mm nano bubble stones, 2*check valves, nano bubble stones can produce denser and more uniform bubbles, which is more suitable for aquatic plants and animals. High Quality Guarantee. The copper wire motor is more energy-efficient, its service life is longer and its operation is more stable. The leather ring is made of special synthetic rubber for greater durability. The lower suction filter blocks impurity particles, which allows the air to sanitize and the air pump to work more normally. The frosted case is smoother and more delicate, safer to use.