The ALSDV1 18 08 WHT 20 Spiral is an aluminum spiral duct fitting, measuring 18" x 8". This lightweight yet durable fitting is designed for efficient air distribution in HVAC systems. Its white finish allows for a clean aesthetic, making it suitable for various applications. The aluminum construction ensures resistance to corrosion, while the spiral design enhances airflow efficiency. Compliant with industry standards, this duct fitting is an excellent choice for both residential and commercial installations, ensuring optimal performance and reliability.