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Manual Damper For Use With 1BLJ5
Manual Damper Damper Application Backdraft For Nominal Duct Diameter Not Applicable Frame Material Fiberglass Maximum Air Velocity Not Rated Overall Height 22 7/8 in Rough Opening Diameter Not Applicable Rough Opening Shape Square Fits Fan Diameter 20 in For Duct Shape Not Applicable Free Area Not Applicable Overall Width 22 7/8 in Frame Material Thickness 2.6 mm Overall Length Not Applicable Connection Type Not Applicable Frame Depth 3 3/8 in Rough Opening Length Not Applicable
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Manual Damper Damper Application Backdraft For Nominal Duct Diameter Not Applicable Frame Material Fiberglass Maximum Air Velocity Not Rated Overall Height 22 7/8 in Rough Opening Diameter Not Applicable Rough Opening Shape Square Fits Fan Diameter 20 in For Duct Shape Not Applicable Free Area Not Applicable Overall Width 22 7/8 in Frame Material Thickness 2.6 mm Overall Length Not Applicable Connection Type Not Applicable Frame Depth 3 3/8 in Rough Opening Length Not Applicable