Description
See more product details Backdraft Damper / Wall Shutter, Fits Fan Dia. 16 in, Shutter Overall Size 19 in x 19 in, Shutter Construction Material G-90 Galvanized Steel Frame and Tie Rods, Shutter Opening Required 16-1/2 in x 16-1/2 in, Shutter Free Area 1.436 sq ft, Vertical Shutter Mounting Position, Shutter Mounting Location Wall, Frame Depth 2 1/2 in, Open Depth 5 3/4 in, Flange Width 1 1/2 in, Mounting Hole Size Prepunched, Max. Velocity 2500 FPM, Blade Material Mill Finish Aluminum To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
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