It is a premium sealing component engineered for robust, leak-free connections in gas chromatography columns. Constructed from an 85% Vespel® / 15% Graphite composite, this ferrule combines temperature stability, chemical inertness, and structural durability to meet the demands of rigorous GC applications. Its larger 1.00 mm inner diameter supports higher flow or larger-bore columns, while the long design enhances mechanical stability and tight sealing under varying temperature and pressure cycles. Packaged as a set of 10, it’s ideal for laboratories requiring consistent, high-quality column fittings.