>> The gravity air louver is a wall mounted device. It is composed of a set of horizontally mounted blades; they are normally closed and are free to rotate about the horizontal axis.
>> The blades & frame are manufactured from aluminum extruded profiles.
>> Horizontally mounted blades are available with Brass bushes.
>> It is Provided with GI insect Screen.
>> Power coated to RAL 9010/9016 as standard finish.