Revit Mep Library Link Guide
Manufacturer-specific content is useful, but often "heavy" (too much geometry) or messy (poor parameter naming).
If you are missing the default content that comes with Revit (or your IT department didn't install the Family Libraries during setup), you can download the official Autodesk packs. revit mep library link
Unlike architectural components, MEP families rely heavily on , including: Connector definitions (flow, voltage, pipe size) Manufacturer-specific content is useful