Trajan SGE 100% Graphite Ferrules, Short Ferrule, For Use With: 0.0625 in. Swagelok or SGE Short Style SSN Nuts, Agilent HP, Varian GC Systems, 0.1 to 0.32 mm I.D. Gas Chromatography Column, Diameter Inside: 0.031 in., 0.08 cm, Length: 0.032 cm, Temperature Maximum: 842 deg.F