Steel Backdraft Damper, 16, SOLER & PALAU, Mfr# CAR400

16 In.dia Aluminum Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter 16 in, Frame Material Galvanized Steel, Number of Panels 2, Overall Height 7 5/8 in, Rough Opening Diameter 15 5/8 in, Rough Opening Shape Round, Fits Fan Diameter 16 in; 24 in, For Duct Shape Oval, Free Area 191.8 sq in, Overall Width 15 7/8 in, Overall Length 7 5/8 in, Frame Depth 3 5/8 in, Rough Opening Length 7 3/4 in, Overall Diameter 16 in, Rough Opening Width 15.6 in, Blade Material Aluminum