Double Wall Spiral Round duct

Double wall spiral round and oval ducts are air distribution components with two layers of material for enhanced durability and thermal insulation. The outer layer provides additional strength and protection, while the inner layer ensures smooth airflow and minimizes air resistance. These ducts are commonly made from galvanized steel or aluminum, offering excellent corrosion resistance. Double wall construction reduces noise and condensation, improving system efficiency and comfort. Ideal for commercial and industrial applications, they provide reliable, long-lasting performance for ventilation, heating, and cooling systems.