Specific model CAD and revit files can be easily found using the Bell & Gossett system selection tool, ESP-Systemwize or you can use the CAD and REVIT buttons below to access files by product series. Bell & Gossett Revit content is of the highest quality. Each piece of Revit content is thoroughly tested by engineers prior to release to the public. Clicking on the black revit buttons will download a zip folder of all sizes in the product series you have selected.