This is a hose for your lawn and garden equipment. It is just over 4 inches long, and made of a strong, and durable plastic. The hose is connected to the air purge bulb and the carburetor, and may be called a fuel hose. If you use your machine often, this part will deteriorate and crack, allowing fuel to leak out. If your line is damaged it should be replaced right away. This hose could also be used as the return fuel line.
Manufacturer Part Number: 537042401