1、The three‑way diverter valve can combine 2 air outlets into one channel, and can also divide 1 air outlet into two channels. 2、The two‑way diverter valve divides the pipe into two, and the two ends are reconnected with an air regulating valve, which can control the rotary plug and adjust the size of the air flow. 3、The air pipe is made of high‑quality plastic, which is not easy to corrode, and is durable, has a long service life. 4、The suction cup can fix the oxygen tube on the fish tank wall, which is neat and beautiful, and the pipe is not easy to float. 5、Small, light and easy to install, it can be installed without other complicated steps, and can be reused, bringing you more convenience.