PL-5800 is a patent pending, 7-1/2" deep high-performance system with a vertical louver and perforated sheet face. This system is tested in accordance with AMCA 500-L for air performance and wind-driven rain performance. PL-5800 has also been tested in accordance with and passed AMCA 550, the Test Method for High-Velocity Wind-Driven Rain Resistant Louvers in the fully open position that permits airflow through the louver.