| Color | : | Black |
| Core Material | : | Polyester |
| Flame / Smoke Rating | : | Class 1 (25/50) |
| Inside Diameter | : | 7 in |
| Insulated | : | Yes |
| Jacket Material | : | Black Polyethylene |
| 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 | : | PR-25 Series |
| Product Type | : | Insulated Flexible Duct |
| R-Value | : | 8 |
| Shape | : | Round |
The JPL PR-25 Series is a UL listed Class 1 flexible air duct designed for supply and return lines in low to medium pressure HVAC systems. This 25-foot duct features R-8 fiberglass insulation protected by a durable black polyethylene vapor barrier to ensure thermal efficiency and prevent condensation.Constructed with a strong spring steel wire helix and an airtight, 2-ply polyester inner core, this duct provides reliable airflow. It is certified for meeting NFPA 90A and 90B standards, making it a trusted choice for residential and light commercial applications.