Share Email Facebook Twitter LinkedIn MechanicalSystem.DuctNetwork Property The ducts and fittings contained within the system. Namespace: Autodesk.Revit.DB.MechanicalAssembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0) Syntax C# public ElementSet DuctNetwork { get; }Property ValueElementSet Remarks The return value doesn't include terminals or equipments, the ducts and fittings are returned in no particular order. See AlsoReferenceMechanicalSystem ClassAutodesk.Revit.DB.Mechanical Namespace