These PTFE washers are used in conjunction with the QUICKFIT® aperture screwcaps, silicone sealing rings and threaded glass tubes by glassblowers to create a screw thread joint that can be used for adding a thermometer, inlet tube or probe to a glassware assembly.

• Manufactured from white PTFE
• For use with QUICKFIT® adapters and screw thread glass tubes
• A range of sizes available for use thermometers, probes, etc.
• Can be used at temperatures up to 260°C