Use with 3" or 4" round duct. Has built-in back draft damper and bird screen. Galvanized steel. Baked enamel, black finish. Product is manufactured in United States. This product meets customer requirement.

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Use with 3" or 4" round duct. Has built-in back draft damper and bird screen. Galvanized steel. Baked enamel, black finish. Product is manufactured in United States. This product meets customer requirement.

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