DAYTON 4HX74 Damper,Backdraft($54.95Value)

Description

14.75 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 14 3/4 in, Rough Opening Diameter 12 1/2...