Function: The air outlet of the air conditioner can be adjusted by adjusting the fan blades of the air outlet. Widely used in air outlets of passenger cars, motor homes, engineering vehicles and electric vehicles. Name: RV bus air conditioner outlet DESCRIPTION Air conditioner outlet of RV bus - spherical air vane ( 71 / 63) - Black Material: ABS Product color: Black Boundary dimension: 71mm Opening size: 63mm Thread height: 25mm It is widely used in air outlets of passenger cars, recreational vehicles, engineering vehicles and electric vehicles. Fitment: RV,Boat,Bus,Car etc. Note: Professional Installation is Highly Recommended. Package Contents: 1 x air outlet Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.