Ducting Material: 6 INCH (diameter) x 9.84 feet (length) when fully extended， High-quality aluminum (High Temperature Resistant & Corrosion Resistant & Long Lasting);Clamps Material: Stainless steel (Rustproof & Corrosion Resistant & Heavy Duty).
Ducting Feature 1: Three-layer Thickness (Aluminum Foil + PET + Aluminum Foil): Flame-retardant coating. Thermal Endurance: Temperature range from -22 to 266 Fahrenheit.
Ducting Feature 2: Built-in steel wire for reinforcement Flexible ventilation ducting made from high-quality flame-retardant aluminum and built-in corrosion-resistant wire helix for reinforcement and and long lasting performance.
Ducting Feature 3: Flexible length for exhaust fan blower / inline fan; quick and easy to set up.
Application Scenarios: Perfect for Heating Ventilation & Air Conditioning (HVAC), Kitchens, Bathrooms, Greenhouses, Grow Rooms, Grow Tents, etc.