Feature: 1. The oxygen tube is made of high‑quality plastic, which is not easy to corrode in the long‑term invading water, and can effectively increase oxygen. 2. The three‑way diverter valve can combine 2 air outlets into one channel, and can also divide 1 air outlet into two channels. 3. The two‑way diverter valve divides the air pipe into two channel, and the two ends are reconnected with air regulating valves, can control the rotary plug to adjust the size of the air flow. 4. The air stone can make bubbles, and the air output is large, and it can be used repeatedly. 5. Suction cup can be used to fix the oxygen tube on the cylinder wall, which is neat and beautiful, not easy to float. Specification: Condition: 100% Brand New.Item Type: Aquarium Air Pump AccessoriesMaterial: PlasticColor: As the Picture Shown Package List: 2 x Check Valve6 x Suction Cup 1 x Tube2 x Air Stone4 x Accessories