It is an advanced sealing component designed for reliable and durable column connections in gas chromatography systems. Crafted from a composite of 85% Vespel® and 15% graphite, this long ferrule provides strong chemical resistance, thermal stability, and minimal bleed. Its 0.8 mm inner diameter accommodates higher flow or larger-bore columns, while the extended length enhances mechanical stability and consistent sealing under varying temperature and pressure conditions. Supplied as a pack of 10, these ferrules are ideal for routine use as well as demanding GC workflows requiring robust performance.