DAYTON 4HX77 Damper,Backdraft($68.69Value)

Description

17.75 In.H-W 4.5 In.L Aluminum Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2250 fpm, Overall Height 17 3/4 in, Rough Opening Diameter 15...