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Backdraft Damper, Wall Mount, Supply, Damper Size (In.) 15 x 15, Overall Size (In.) 17-3/4 x 17-3/4, Flange Width (In.) 1-3/8, Max. Velocity (FPM) 2000, Construction Material 16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware, Use w/Dayton Ventilators 4HZ58, 4HZ59, Includes Felted Edges For Quiet OperationSpecification: Use w/Dayton Ventilators: 4HZ58, 4HZ59Outside Flange (In.): 17-3/4 x 17-3/4Damper Size (In.): 15 x 15Flange Width (In.): 1-3/8Max. Velocity (FPM): 2000Item: Backdraft DamperOverall Size (In.): 17-3/4 x 17-3/4Includes: Felted Edges For Quiet OperationType: Wall Mount, SupplyConstruction Material: 16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware
