Where can I use the tracheal joint with throttle valve?

The throttle valve has a quick connector with an air pipe. Just insert the trachea with proper outer diameter into the quick connector to connect the pipeline.

There is a quick connector with an air pipe on the throttle valve. Just insert an air pipe with an appropriate outer diameter into the quick connector connecting pipeline, and adjust the air intake through the rotation of the valve plate of the throttle body.

Throttle valve is a valve that controls fluid flow by changing throttle section or throttle length.