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Rectangular Fire Damper 11-3/4x23-3/4 In
23.8 In.H 11.8 In.W 3.7 In.L GStl Grvty Fire Dmpr Damper Application Fire Frame Material Galvanized Steel Number of Panels 1 Maximum Air Velocity None Overall Height 11 3/4 in Rough Opening Diameter Not Applicable Rough Opening Shape Rectangular Fits Fan Diameter Not Applicable For Duct Shape Rectangular Free Area 1.4 sq ft Overall Width 23 3/4 in Frame Material Thickness 22 ga Overall Length 3 3/4 in Connection Type Not Applicable Frame Depth 3 3/4 in
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23.8 In.H 11.8 In.W 3.7 In.L GStl Grvty Fire Dmpr Damper Application Fire Frame Material Galvanized Steel Number of Panels 1 Maximum Air Velocity None Overall Height 11 3/4 in Rough Opening Diameter Not Applicable Rough Opening Shape Rectangular Fits Fan Diameter Not Applicable For Duct Shape Rectangular Free Area 1.4 sq ft Overall Width 23 3/4 in Frame Material Thickness 22 ga Overall Length 3 3/4 in Connection Type Not Applicable Frame Depth 3 3/4 in