Boiler Equipment — professional 3D model by tiger-fire (CGTrader). Price: $6.
STL (Stereolithography, filesize: 69 MB), OBJ (OBJ, filesize: 142 MB), 3MF (3D Manufacturing File, filesize: 19.2 MB), FBX (Autodesk FBX, filesize: 31.8 MB), MAX (Autodesk 3ds Max, filesize: 106 MB)