Ruskin India High performance stationary louvers (L-330-AL ) in Aluminum construction.

The frame is in Aluminum construction with 102mm depth and 18G and Aluminum non-drainable blades  in18G spaced 102 mm center to center. The blade angle is at 37.5 degree and approximate free area of 53%.The Bird screen is ½” Mesh 19 G Aluminum steel frame. Screen adds approximately ½” to louver  depth.