S-450 Standard Blade
![](/assets/components/phpthumbof/cache/S-450-HI-D-300x225.13cae9a934633d98e1a0b0b907b66394.jpg)
4″ Deep high performance series; extruded aluminum construction; frame with channel profile; corner joints mitered and mechanically fastened, with continuous recessed caulking channel each side; intermediate mullions matching frame; gutters; rated for an air performance and water penetration maintained effectiveness rate tested in accordance with AMCA 500-L.
AIRFLOW PERFORMANCE
Free Area: 48% , based on a test sample of 48in (1220mm) x 48in (1220mm) Airflow Classifica on—Class 3