This 4-inch to 3-inch concentric tapered duct fitting provides an efficient inline transition between two different round pipe sizes. Whether increasing or reducing duct diameters, it maintains balanced airflow and static pressure throughout your residential or commercial HVAC distribution layout.
Built using reliable 26-gauge galvanized steel, this duct adapter delivers exceptional durability and defense against rust and wear. The solid construction minimizes the risk of air leakage and ensures the fitting holds up under continuous airflow.
Engineered for HVAC technicians seeking a dependable solution for branch line step-downs or exhaust extensions, this fitting streamlines system customization. Always check technical layout specifications and local requirements to verify a secure, airtight installation.
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