This 3D model was originally created with Sketchup 8 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 This is the side to side air flow model.. for the front to back you need the 6509 E V (v as in vertical).
STL (Stereolithography, filesize: 719 KB), OBJ (OBJ, filesize: 670 KB), 3DS (3D Studio, filesize: 758 KB), DAE (Collada, filesize: 1.32 MB), FBX (Autodesk FBX, filesize: 901 KB), IGE (IGES, filesize: 299 Bytes), MAX (Autodesk 3ds Max, filesize: 1.05 MB), SKP (Sketchup, filesize: 2.04 MB), OTHER (Other, filesize: 734 KB)