Description
The Allegro 9520‑09M / 9500‑15A ventilation duct is a flexible 8 in (20.3 cm) diameter blower hose used to channel airflow between a blower and the jobsite area. Made from vinyl and polyester with a PVC coating, this duct is lightweight, durable, and suitable for directing either supply or exhaust air for confined space ventilation systems. It features a Class 1 hard‑drawn spring steel wire helix that maintains shape under airflow while still collapsing for storage and transport. Designed to meet ASTM 227 standards for ducting and used with Allegro blowers like those in the 9513, 9533‑E, 9534, and 9543 series, it ensures effective airflow delivery over distances up to 15 ft (4.6 m).
Key Features
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Diameter: 8 in (20.3 cm), compatible with standard Allegro axial blowers.
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Length: 15 ft (4.6 m) for flexible ventilation reach.
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Material: Vinyl and polyester with PVC coating for durability and resistance to wear.
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Design: Retractable, non‑collapsible with spring steel helix to maintain shape under airflow.
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Standards: Meets ASTM 227 for ventilation ducting.
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Use: Directs fresh air into or exhausts contaminated air out of confined spaces.
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Compatibility: Works with blowers in Allegro’s 9513, 9533‑E, 9534, and 9543 series.
