36 1/2 Inch Aluminum Fan Shutter - Mill Finish for Attic Ventilation & Exhaust Systems - Durable Metal Airflow Cover for Home & Commercial Use

Product Description

Backdraft Damper / Wall Shutter, Fits Fan Dia. 36 in, Shutter Overall Size 39 in x 39 in, Shutter Construction Material G-90 Galvanized Steel Frame and Tie Rods, Shutter Opening Required 36-1/2 in x 36-1/2 in, Shutter Free Area 7.436 sq ft, Vertical Shutter Mounting Position, Shutter Mounting Location Wall, Frame Depth 3 in, Open Depth 6 1/4 in, Flange Width 1 1/2 in, Mounting Hole Size Prepunched, Max. Velocity 2500 FPM, Blade Material Mill Finish Aluminum