The 4000 E.A. is a 4″ extruded aluminum custom louver. It is equipped with storm-proof blades and is designed for maximum free area. It can be used for a variety of applications and can be custom made to almost any size.
The 4000 E.A. is a 4″ extruded aluminum custom louver. It is equipped with storm-proof blades and is designed for maximum free area. It can be used for a variety of applications and can be custom made to almost any size.