Need a durable, flexible duct for ventilation? This HealSmart aluminum duct is 6 inches in diameter and 25 feet long – perfect for dryer vents, HVAC systems, grow tents, kitchen exhausts, bathroom fans, and more. It's built with four layers (PVC + aluminum foil + PET + aluminum foil) for extra strength, leak resistance, and light blocking. The aluminum foil interior is heat and corrosion resistant, with a temp range of -22°F to 212°F. It bends easily to fit tight spaces and comes with two stainless steel clamps for secure connections. The PVC outer layer is thick and durable. Whether you're setting up a ventilation system, cooling lights, or just need a reliable duct for your dryer, this one is tough, easy to install, and built to last. Make your airflow projects smoother with this versatile and heavy-duty flexible duct!