JOINT SLEEVES,PTFE,FOR NS 45/40

With knurled gripping ring at the top of the cone for easy removal. For gas, liquid and vacuum-tight cone joint connections with sizes as outlined below. Reusable. With reinforced external ribs for a high-vacuum tight seal (leakage rate: < 1x10^-4mbar x I x s^-1). No joint sealant or grease required.