18-400mm Green Ribbed Thermoset Solid Top Cap with PTFE/F217 Liner, 500-pk

These premium 18-400 threaded closures feature a durable green ribbed thermoset construction paired with a PTFE-faced F217 foam liner, delivering exceptional chemical resistance and reliable sealing performance. Ideal for sample storage, solvent handling, and general laboratory applications where contamination prevention and secure closure are critical, these caps provide an inert sealing surface suitable for a wide range of analytical and research workflows.

• Thread Size: 18-400mm standard screw thread for universal compatibility with corresponding vials and bottles
• Cap Material: Ribbed thermoset construction provides excellent dimensional stability and chemical resistance
• Liner Composition: PTFE/F217 dual-layer liner offers superior chemical inertness with cushioned sealing properties
• Closure Style: Solid top design with ribbed sidewalls for secure grip and torque application
• Quantity: 500 caps per package for high-throughput laboratory environments
• SKU: 5360PH-18G