Mitchell Metal Products Ductboard Starting Collar With Damper, 349 Series, 12 in Fitting, Steel, Finish: Galvanized, 12 in Diameter, For Use With: R8 2 in ductboard, Domestic/Import: Domestic
| Domestic/Import | Domestic |
| Series | 349 Series |
| Material | Steel |
| Finish | Galvanized |


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