15% Graphite 85% Vespel Ferrule

Provide a continuous leak-free connection and are perfect for connecting your column to a GC/MS. The SilTite^™ metal ferrule and nut are manufactured from the same material and therefore expand and contract at the same rate, eliminating the need to retighten – even after temperature cycling. The base of the SilTite ferrule forms a perfect seal with the MS interface, ensuring a leak-free connection. SilTite metal ferrules have a temperature limit well above the temperature capacity of the injector, MS interface or GC oven.