50 In.H-W 4.5 In.L Alu Ceiling Shutter Dampr, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2250 fpm, Overall Height 50 in, Rough Opening Diameter 48 in, Rough Opening Shape Square, Fits...
50 In.H-W 4.5 In.L Alu Ceiling Shutter Dampr, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2250 fpm, Overall Height 50 in, Rough Opening Diameter 48 in, Rough Opening Shape Square, Fits...