DAYTON 3TZ50 Damper,Roof Mount,Exh Only,11 1/2 Sq($37.69Value)

Description

11.5 In.H-W 4.5 In.L Aluminum Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2000 fpm, Overall Height 11 1/2 in, Rough Opening Diameter...