8 In.dia GSteel Manual Balancing Dampr, Damper Application Balancing, For Nominal Duct Diameter 8 in, Frame Material Steel, Number of Panels 1, Maximum Air Velocity 2000 fpm, Overall Height Not Applicable, Rough Opening Diameter 8 in, Rough Opening...
8 In.dia GSteel Manual Balancing Dampr, Damper Application Balancing, For Nominal Duct Diameter 8 in, Frame Material Steel, Number of Panels 1, Maximum Air Velocity 2000 fpm, Overall Height Not Applicable, Rough Opening Diameter 8 in, Rough Opening...