Producer: Hewlett Packard. Model: GC 6890, G1540A. For gas analysis. Detector: TCD (thermal conductivity detector). Entry for gaseous samples. Columns that can be switched on twice separately. EPC (electronic pressure control). Three columns are installed, no warranty for the columns. 2FT 12# UCW ON PAW 80/100 MESH. 19006-80100. 10 FT HAYESEP Q 80/100 MESH. 19006-80110. ShinCarbon ST, 50/80 mesh size. G3591-81187. With control PC. Delivery time: Approximately 2 weeks Labprocure is responsible for this device.