20 in Backdraft Damper / Wall Shutter, 22-1/2 in x 22-1/2 in PRODUCTS_IMPORT Frame 48Y Yoke Mount graingerSKU:

Frame 48Y Yoke Mount graingerSKU: 13F053

12V graingerSKU:

zoro_no: G6735714

155 cfm graingerSKU:

Frame Material Polypropylene

20 in Backdraft Damper / Wall Shutter, 22-1/2 in x 22-1/2 in PRODUCTS_IMPORT Frame 48Y Yoke Mount graingerSKU:25 In. H W 5. 75 In. L Aluminum Wall Fan Shutter, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2500 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 0. 8 in, Overall Length 5 3 4 in, Connection Type