| Color | : | Silver / Metallic |
| Core Material | : | Polyester |
| Flame / Smoke Rating | : | Class 1 (25/50) |
| Inside Diameter | : | 12 in |
| Insulated | : | Yes |
| Jacket Material | : | Metalized Polyester |
| Length | : | 25 ft |
| Maximum Air Velocity | : | 5,000 FPM |
| Maximum Working Pressure | : | 6 in w.c. |
| Operating Temperature Rating | : | 0-200 F |
| Package Quantity | : | 1 |
| Product Family | : | MHP-25 Series |
| Product Type | : | Insulated Flexible Duct |
| R-Value | : | 8 |
| Shape | : | Round |
The MHP-25 Series is a UL 181 listed Class 1 flexible air duct designed for supply and return applications in low to medium pressure HVAC systems. Built with a strong spring steel wire helix and an airtight 2-ply polyester inner core, it ensures reliable performance. The core is surrounded by certified R-8 fiberglass insulation and shielded by a durable, reinforced metalized polyester vapor barrier to minimize thermal loss and prevent condensation.
