| Connection Size 1 | : | 4 in |
| Connection Size 2 | : | 3 in |
| Connection Sizes (Custom) | : | 4~3 in |
| Depth | : | 4 in |
| Diameter | : | 4 in |
| Duct Shape 1 | : | Round |
| Duct Shape 2 | : | Round |
| Material | : | Galvanized Steel |
| Package Quantity | : | 1 |
| Product Family | : | 20 Series |
| Product Type | : | Reducer |
| Reducing | : | Yes |
| Width | : | 4 in |