Thin Ptfe Sleeves, Elongated Cones Of Microthin (0.05mm) Polytetrafluoroethylene Film Tapered To Fit Snugly Around Glass Joints, Case Of 6

Details:

Elongated cones of microthin (0.05mm) polytetrafluoroethylene film tapered to fit snugly around glass joints.Eliminate lubrication contamination along with frozen or leaking ground jointsUsable from −75° to 250°C (−103° to 482°F)