LTP stops the light by maintaining a good airflow. It is recommended to direct the shutter blades vertically in case LTP is installed in dusty environments: sédiments will drop downwards and won't interfère with the airflow.
Available in classic dimensions and on request also not standard.
4 rods to avoid vanes movement during cleaning
The spécial double-wave vanes guarantee a high obscurating capacity by low pressure drops.
Practical hook blade for easy installation