... (ball spout,ball jet diffuser) For the odium, airport, theater, museum supply air Neck: 50, 100, 150, 200mm Jet Nozzle Diffuser(ball ... spout,ball jet diffuser)The features of the ball jet diffuser FK-QP are long ... adjustment can be regulated 360 degrees. There is a ball jet diffuser in the exhaust hook of the outlet QP together ...