The Allegro 9600‑25 retractable ventilation duct delivers reliable air handling for industrial, construction and confined‑space ventilation systems. Made from rugged vinyl/polyester with a PVC coating and a non‑collapsible design, it supports dual‑direction airflow with low friction loss. Bright yellow with black weather strip improves visibility on jobsites, while sturdy cuffs at both ends ensure secure blower connections.