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SGE *15% Graphite - 85% Vespel* Combination Front and Back Ferrules (GVF)
Maximum temperature: 350°C. Can be used without back ferrule with Swagelok* or Parker-Hannifin* fittings. Used with SGE SSNE (long style) nuts and capillary unions for mass spectrometry and general capillary work. Shortened style GVFS ferrules for use with Hewlett Packard capillary fittings. Mini GVF ferrules for use with SGE mini unions (MGVF).