TG-5MS 30M X 0.25MM X 0.255M.Thermo Scientific TraceGOLD TG-5MS GC Columns, 0.25um Film Thickness, 0.25mm I.D., 30m Length, Diameter: 0.25 mm, Film Thickness: 0.25 um, Length: 30 m, For Use With: GC/MS, Particle Size: 0.25 um, Product Line: TraceGOLD