Thermaflex® Pro Series

Thermaflex Insulated and Non-Insulated Duct for Commercial HVAC

Thermaflex’s Pro Series flexible duct products are the most reliable and durable products in the commercial HVAC industry. All products feature a full 10 Year Warranty, the best in the industry. Download the Pro Series Brochure to learn more! 


  • Reduced total installed cost – fast economical installation.
  • Superior insulation and thermal performance.
  • Easily shaped to fit oval inlets and fittings.
  • All components are self-extinguishing and will not support flame.
  • Certified UL 181 & NFPA 90A and 90B for US & Canada.
  • Complies with most state and federal standards or codes.
  • Unique construction will not unravel when cut.
  • Suitable for air venting and drying applications.
  • May help contribute to meeting LEED requirements.