20 in Backdraft Damper / Wall Shutter, 22-1/2 in x 22-1/2 in DESCRIPTION_UPDATE 10X33MM Shnk

10X33MM Shnk

Sign Legend Style Text graingerSKU: 468N09

Industry Number 5/5V2000

Material Aluminum Bronze graingerSKU: 21XV70

zoro_no: G9754851

20 in Backdraft Damper / Wall Shutter, 22-1/2 in x 22-1/2 in DESCRIPTION_UPDATE 10X33MM Shnk25 In. H W 6 In. L Aluminum Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2000 fpm, Overall Height 25 in, Rough Opening Diameter 22 1 2 in, Rough Opening Shape Square, Fits Fan Diameter 20 in, For Duct Shape Not Applicable, Free Area 2. 5 sq ft, Overall Width 25 in, Frame Material Thickness 20 ga, Overall Length 6 in, Connection Type