Small tubing connector comprised of a TFE, 1/4"-28 UNF 2B male nut and a Kel-F wedge insert. Designed for use with our 5838 chromatography adapters, 1.5-2Mm ID tubing won't slip off or blow out during vacuum or pressure applications. Easily assembled with a simple tool, Code -80 which mechanically wedges the tubing between the insert and the inside wall of the nut.