- Sound-attenuating external louvre
- Weather and noise protection at reduced depth
- For more stringent acoustic requirements there ara twin louvres available
- For visual integration can also be supplied as blind louvre
一个产品就能同时做到消声、防雨以及阻止小动物进入系统，且安装深度小。
square, rectangular
W: 300 – 1,800 mm
H: 450 – 2,250 mm
