1、Quiet Oxygen Pump: Our aquarium pump is designed with upgraded technology to ensure a quiet and efficient operation. It\u0027s perfect for those who appreciate the calming effect of fish tanks but don\u0027t want the distraction of a noisy pump. 2、Adjustable Water Pump: Features an adjustable rate, allowing you to control the water rate to suit the needs of your aquatic pets. Whether small tanks or large aquariums, our water pump can be tailored to provide the ideal environment. 3、Stable Output: Our 20W/30W aquarium oxygen pump adopts a premium rubber cup and copper wire motor, generating more stable airflow than the traditional water pump does, and it is more enduring, and more energy efficient. 4、Complete Set: This aquarium pump is equipped with all accessories needed, including a short tube, a manifold with 4 outlets, 4 check valves, a 4m tube, and 4 air-stones. You can then aerate your fish tanks the minute you receive it. 5、Wide Application: The small pump can produce sufficient airflow, and can be freely used as large aquarium pumps, fish tanks, yard pond aerators, hydroponics system pumps, commercial oxygen pumps for seafood markets, and more.