spiral ducts

As the round spiral duct has better airflow than square-shaped duct, it provides good air-control and ventilation. Its air-tightness make it the best choice for energy reduction. Since ducts are connected in a spiral manner, they provides better air-tightness, strength, and endurance. Also, it can be installed easily and economically. Compared to square-shaped ducts, this product has low friction for better airflow and high air-tightness for energy saving. The spiral duct has strong lock seams, which are connected in a spiral manner for superb strength and endurance. It can be easily installed and is economical. As this product can withstand temperatures from -30 to 100 and a pressure of

it provides good air-control and ventilation. Its air-tightness make it the best choice for energy reduction.