AC-645 Flat Blade
6″ deep fixed horizontal flat blade with woven glass fiber acoustic infill ;in extruded aluminum construction; frame with channel profile and mechanically fastened, with continuous recessed caulking channel each side; tested to ASTM E90-04. STC-15 and OITC 12
AIRFLOW PERFORMANCE
Free Area: 28% based on a test sample of 48in (1220mm) x 48in (1220mm) Discharge loss coefficient Classification—Class 2
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