| Color | : | Black |
| Core Material | : | Polyester |
| Flame / Smoke Rating | : | Class 1 (25/50) |
| Inside Diameter | : | 6 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 PR-25 Series is a UL listed, Class 1 flexible air duct for use in low to medium pressure HVAC supply and return systems. Its construction ensures guaranteed out-of-package length and reliable, long-term performance for efficient air distribution.Engineered for thermal efficiency, this duct features a resilient black vapor barrier jacket to protect the insulation and maintain system integrity. It is a dependable solution for both new installations and retrofits.