| Color | : | Silver / Metallic |
| Core Material | : | Polyester |
| Flame / Smoke Rating | : | 25/50 |
| Inside Diameter | : | 7 in |
| Insulated | : | Yes |
| Jacket Material | : | Metallized Polyester |
| Length | : | 25 ft |
| Maximum Air Velocity | : | 5,000 FPM |
| Maximum Working Pressure | : | 6 in w.c. |
| Operating Temperature Rating | : | -20-140 F |
| Package Quantity | : | 1 |
| Product Family | : | #031 Series |
| Product Type | : | Insulated Flexible Duct |
| R-Value | : | 8 |
| Shape | : | Round |
| Shipping Weight | : | 15.45 lbs |
The Atco #031 Series is a UL 181, Class 1 Insulated Flexible Duct designed for supply and return air applications in residential and commercial low-to-medium pressure HVAC systems. It is constructed with a durable, tri-directional fiberglass scrim reinforced, metallized polyester outer jacket and provides an R-8 insulation value for superior thermal performance.The air-tight inner core consists of a double lamination of tough polyester that encapsulates a steel wire helix. This design prevents fiberglass erosion into the airstream and ensures low friction loss for efficient airflow.
Durable Jacket: Built with a tough, tear- and puncture-resistant metallized polyester jacket reinforced with a tri-directional fiberglass scrim.Air-Tight Core: Features a double-laminated polyester inner core with an encapsulated steel wire helix to ensure an air-tight seal and prevent fiberglass erosion.High-Performance Insulation: Provides superior thermal efficiency with a thick blanket of R-8, formaldehyde-free fiberglass insulation.Simplified Installation: The encapsulated wire helix prevents unraveling when the duct is cut to length, speeding up job site installation.Safety Compliant: UL 181 listed as a Class 1 Air Duct and certified for low chemical emissions and high resistance to mold growth.