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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
Frame Material Polypropylene
Material FEP Silicone
12V graingerSKU:
SpeedQueen graingerSKU: 66DJ21
20 in Backdraft Damper / Wall Shutter, 22-1/2 in x 22-1/2 in PRODUCTS_IMPORT Frame Material Polypropylene25 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
