Features: 1.The features of the ball spout FK-QP are long-distance air supply with less noise, which are mainly used in the superior places where hot/cold air supply is required. The outlets can be regulated by hand or electric devices to meet the change of the temperature. The max. up or down adjustment angle of the outlets is 30 degrees. The product with manual adjustment can be regulated 360 degrees. 2.There is a ball spout in the exhaust hook of the outlet QP together with a draught ring and connecting pipe which can be installed in the round duct. The ball spout FK-QP is mainly used in the area where the a/c outlets are far away from the people moving around. For example, in the big public open space, it is not proper to use ceiling outlets because they are not able to supply air uniformly to the corners and it is better to install ball spouts to supply side air. On the condition that air supply and the indoor temperature are changing, the supply airflow will be up (cold air) and down (hot air).Our ball spout is quite good at the noise control because the theory of the air dynamics is adopted in its structure design. Furthermore due to its unique excellent appearance, it can be used in the superior places such as concert, airport, theatre, museum, etc. The way of supplying air can be manually adjusted or electrically adjusted within ±30 degrees Inner packing:100,125,160,200,250,315,400,500 Outer packing:100,125,160,200,250,315,400,500 Quantity:1