flexible air duct,PVC Aluminum duct,flexible duct,ventilation duct,rang hood duct flexible air duct,PVC Aluminum duct,flexible duct,ventilation duct,rang hood ductVentilation Duct,air duct,flexible duct Model No.DescriptionMaterialPKProduct sizemm)CBMBH38W3" dia.x 8 ft.vinyl ductPVC4811576760.0358BH320W3" dia.x 20 ft.vinyl ductPVC3235576760.0748BH350W3" dia.x 50 ft.vinyl ductPVC876576760. ...