Designed for efficient and safe dryer ventilation, this semi rigid dryer duct combines fire resistance, easy installation, and durable construction. It meets Class "0" fire resistance standards, preventing flame and smoke spread within a temperature range of -22°F to 482°F, ensuring household safety. With a focus on tight spaces, it allows 90-degree bending, and included accessories simplify secure setup. Crafted from high-quality semi rigid aluminum foil, it's recommended by leading dryer manufacturers and offers better durability than standard options. The 4 in. inside diameter, when fully stretched, features a smooth interior that maintains efficient airflow even in compressed or bent configurations, reducing lint buildup and fire risk. A complete set includes the duct, two stainless steel 201 hose clamps, and aluminum foil tape, making it ready for immediate use in home dryer systems.