4 in Dia galvanized steel furnace pipe. 30 Gauge. 24 in L. For distribution of warm and cold air in HVAC ducting systems.
| Type | : | Rigid Ducting |
| Material Gauge | : | 30 |
| Material | : | Galvanized Steel |
| Duct Shape | : | Round |
| Finish | : | Galvanized |
| Length | : | 24 in |
| Diameter | : | 4 in |