Ducting size: 4 inches (diameter) x 25 feet (length) when fully extended
Thermal Endurance: Temperature endurance range from 0 ~ 185°F. (-18? ~ 85?)
Wide applications: kitchens, bathrooms, greenhouses, grow rooms, grow tents, etc.
Easy Installation: Free pair of 4 inch metal clamps made from stainless steel. Flexible length for exhaust fan blower / inline fan
Fire Proof coating: flexible ventilation Ducting made from high-quality Flame-retardant Aluminum and built-in Corrosion-Resistant wire helix for reinforcement and lasting performance