Stoppers, Glass Joint Sleeves

Glass Joint Sleeves
Reusable PTFE Joint Sleeves feature a unique manufacturing process that permits superior quality PTFE joint sleeves at unbelievably low prices. Price permits disposability! Elongated cones of micro-thin virgin PTFE film tapered to fit snugly around glass joints. Approximately 0.05mm (0.002 inch) thick with taper of approximately 1.10 on diameter. Eliminates the need for lubrication and frozen, leaky ground joints. Can be used over a temperature range of -75° to +260° C.