Specifications Duct Size: 4 inch diameter Length: 8 feet Outer Material: PVC thermoplastic Inner Material: Aluminum foil Temperature Range: 22°F to 212°F (30°C to 100°C) Package Includes: 2 ducting tubes, each with a pair of 4 inch stainless steel duct clamps Key Features and Benefits Durable Construction: Made with quality aluminum foil that is resistant to temperatures and corrosion, ensuring reliable longterm performance. Light Leak Prevention: The thick PVC outer layer effectively blocks light, making it suitable for lightsensitive applications. Enhanced Strength: Fourlayer design (PVC layer + aluminum foil + PET + aluminum foil) increases durability and resistance to leaks, tears, and cuts. Flexible Design: Easily bends in any direction to fit into tight or irregular spaces, simplifying installation in areas with space restrictions. Easy Setup: Flexible length is ideal for use with inline fans, and included stainless steel clamps ensure a secure connection. Applications 1. Ventilation Systems: for connecting inline fans in grow tents, HVAC systems, or kitchen exhaust setups to improve airflow efficiency. 2. Heating and Cooling: Suitable for directing warm or cool air in residential or commercial ductwork without compromising performance. 3. Air Filtration: Compatible with carbon filter systems for removing odors or airborne particles in workshops, grow rooms, and confined spaces. This ducting provides a strong, reliable, and adaptable solution for ventilation, heating, cooling, and filtration needs. Its materials and multilayer design ensure lasting performance in both residential and commercial applications.