$3,467
$4,076
$1,097
$14,369
$1,206
$2,805
$3,641
$3,467
$4,076
$1,097
$14,369
$1,206
$2,805
$3,641
$3,467
$4,076
$1,097
21 In.H-W 5.75 In.L Aluminum Backdraft Damper Damper Application Backdraft For Nominal Duct Diameter Not Applicable Frame Material Aluminum Number of Panels 1 Maximum Air Velocity 2500 fpm Overall Height 21 in Rough Opening Diameter 18 1/2 in Rough Opening Shape Square Fits Fan Diameter 18 in For Duct Shape Not Applicable Free Area 2 sq ft Overall Width 21 in Frame Material Thickness 0.8 in Overall Length 5 3/4 in Connection Type Not Applicable Frame Depth 2 1/2 inMRO4C558
| # | Attribute | Value |
|---|---|---|
| 1. | brand | DAYTON |

