| Color | : | Silver / Metallic |
| Core Material | : | Polyester |
| Flame / Smoke Rating | : | 25/50 |
| Inside Diameter | : | 18 in |
| Insulated | : | Yes |
| Jacket Material | : | Metallized Polyester |
| Length | : | 25 ft |
| Maximum Air Velocity | : | 5,000 FPM |
| Maximum Working Pressure | : | 4 in w.c. |
| Operating Temperature Rating | : | -20-140 F |
| Package Quantity | : | 1 |
| Product Family | : | #031 Series |
| Product Type | : | Insulated Flexible Duct |
| Product Weight | : | 39.48 lbs |
| R-Value | : | 8 |
| Shape | : | Round |
| Shipping Weight | : | 39.48 lbs |
The Atco #031 Series is a UL 181 Class 1 insulated flexible air duct designed for supply and return lines in residential and commercial low-to-medium pressure HVAC systems. It provides excellent thermal efficiency with an R-8 insulation value, helping to reduce energy costs and maintain consistent air temperatures.This duct is built with a tough, double-layer polyester inner core and a reinforced, metallized polyester jacket for lasting performance. Its air-tight construction and smooth interior promote efficient airflow, while the use of formaldehyde-free insulation supports healthier indoor air quality.
Durable Jacket: Features a rugged, tear-resistant outer jacket made of tri-directionally reinforced, metallized polyester for long-term durability.Air-Tight Inner Core: Constructed with a double lamination of tough polyester encapsulating a steel wire helix, ensuring an air-tight seal to prevent energy loss.Easy Installation: The encapsulated wire helix is designed to prevent unraveling when the duct is cut to length, simplifying job site handling and installation.High Thermal Performance: Insulated with a thick blanket of formaldehyde-free Owens Corning EcoTouch fiberglass, providing a certified R-8 value for superior thermal efficiency.Efficient Airflow: A smooth inner core minimizes friction loss and reduces operating costs by allowing for efficient airflow through the system.Certified Quality: UL 181 listed as a Class 1 Air Duct and certified for low chemical emissions and mold resistance to ensure safety and air quality.