SS Motrzd Vent Dampr 12.2 In.L 15 In.H 12.2 In.W For Nominal Duct Diameter 10 in Damper Application Vent Number of Panels Not Applicable Overall Height 14 7/8 in Overall Length 10 1/8 in Rough Opening Shape Not Applicable For Duct Shape Not Applicable Overall Width 12 1/8 in Frame Material Thickness 0.024 in Blade Material Stainless Steel Maximum Air Pressure Not Applicable Overall Diameter 10 in Rough Opening Length Not Applicable Rough Opening Width Not Applicable