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Item Description10.75 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 10 3/4 in Rough Opening Diameter Not Applicable Rough Opening Shape Square Fits Fan Diameter 8 in For Duct Shape Square Free Area 0.3 sq ft Overall Width 10 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 Manufacturer Name: DAYTON Manufacturer Part Number: 4HX72 Brand Name: DAYTON Country of Origin: United States (US) National Stock Number: n/a Unit of Measure: EA Item Weight: 1.900 pounds UNSPSC: 40101504 | UPC: n/a Manufacturer's limited warranty. |
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