eFlow-Backdraft Damper


Spring-Loaded Backdraft Damper

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• 20-gauge galvanized steel housing
• Aluminum spring-loaded butterfly damper blades
• Damper seals against EDPM rubber gasket in closed position for minimal leakage
• Gasket designed for use in temperatures up to 122° F
• Requires airflows of 0.04 to 0.08 in. w.g. to begin to open
• May be installed in any position
• The entire assembly inserts into duct for simple installation
• Exterior foam gaskets provide a tight seal against interior surface of duct


The entire unit is guaranteed for three (3) years, from date of shipment, against all manufacturing defects, provided the material has been installed and operated per manufacturer’s instructions and under normal conditions. Warranty is limited to the repair or replacement of the material upon its return freight paid to our factory. This warranty is not transferable and is limited to the original end user.

Additional information

Weight 1 lbs
Dimensions 10 × 10 × 10 in

3", 4", 5", 6", 7", 8"

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