Ordering Description Product number Description: M23 WELD HEAD TOP ASSY, 2 Cameras DIGITAL Product number: 13230100-02 Description: M60 WELD HEAD TOP ASSY 3CAMERA DIGITAL TORCH CROSS SEAM* Product number: 13600100-01 Description: M60R WELD HEAD TOP ASSY W/TORCH-E Product number: 13600101-01