Share Email Facebook Twitter LinkedIn SymbolTypeId.MmH2O Property Symbol mmH2O, indicating unit Millimeters of water column. Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 26.4.0.0 (26.4.0.0) Syntax C# public static ForgeTypeId MmH2O { get; }Property ValueForgeTypeId See AlsoReferenceSymbolTypeId ClassAutodesk.Revit.DB Namespace