Check out Triple Element Pressure Vessel for Industrial RO System 3D model on CGTrader for $79. High-quality mesh by tanphan1105: 52500 polys, 67200 vertices. UV Mapped.
OBJ (OBJ, filesize: 14.6 MB), FBX (Autodesk FBX, filesize: 5.51 MB), IGE (IGES, filesize: 779 KB), STP (STEP, filesize: 480 KB)