countryOfOrigin = US (page 9 / 563)
22.75 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 22 3/4 in, Rough Opening Diameter 20 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 20 in, For Duct Shape Square, Free Area 2.5 sq ft, Overall Width 22 3/4 in, Frame Material Thickness 0.1 in, Overall Length 4 1/2 in, Connection Type Not Applicable, Frame Depth 1 5/8 in
24 In.H 24 In.W Drnbl Extrd Alu Intake Louver, Louver Type Stationary Blade, Frame Type Hat Channel, Frame Depth 4 in, Mounting Style Recess Mount, Outside Height 23 1/2 in, Outside Width 23 1/2 in, Rough Opening Height 24 in, Rough Opening Width 24 in, Louver Maximum Intake 1,342 cfm, Maximum Exhaust 1,918 cfm, Maximum Outside Width 23 1/2 in, Minimum Outside Width 23 1/2 in, Flange Width Not Applicable, Free Area 1.8 sq ft, Beginning Point of Water Penetration 1,031 fpm
26.75 In.H-W 4.5 In.L Alu Intake Shutter Dampr, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2250 fpm, Overall Height 26 3/4 in, Rough Opening Diameter 25 in, Rough Opening Shape Square, Fits Fan Diameter 24 in, For Duct Shape Not Applicable, Free Area 3.2 sq ft, Overall Width 26 3/4 in, Frame Material Thickness 0.1 in, Overall Length 4 1/2 in, Connection Type Not Applicable, Frame Depth 1 5/8 in, Rough Opening Length 25 in
27 In.H-W 6.5 In.L Fiberglass Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Fiberglass, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 27 in, Rough Opening Diameter 24 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 24 in, For Duct Shape Not Applicable, Free Area 3.3 sq ft, Overall Width 27 in, Frame Material Thickness 0.1 in, Overall Length 6 1/2 in, Connection Type Not Applicable, Frame Depth 3 in
28.8 In.H-W 14.5 In.L Squ Mtrzd Contrl Dampr, For Nominal Duct Diameter 30 in, Damper Application Motorized, Number of Panels 1, Overall Height 29 3/4 in, Overall Length 14 1/2 in, Rough Opening Shape Square, For Duct Shape Square, Overall Width 29 3/4 in, Frame Material Thickness 14 ga, Blade Material Galvanized Steel, Maximum Air Pressure 4 in wg, Rough Opening Length 30 in, Rough Opening Width 30 in, Maximum Air Velocity 3500 fpm, Nameplate Voltage 100/240V AC