Product HighlightsUse a reducer on the main trunk line to transition from a larger size duct to a smaller one and to help maintain a high airflow velocity.
California residents: see Proposition 65 Warning
Weight 0.74 Pounds Length 4.00 Inches Width 7.25 Inches Height 8.25 Inches Country of Origin USA Brand Southwark Galvanized Yes Color Silver Composition Galvanized Steel Gauge 28 GA Size 4"
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