SureSTART 18 mm Precision Screw Caps, Level 3, Red Silicone/Natural PTFE – High Temperature, 100-pk

The SureSTART 18 mm Precision Screw Caps deliver exceptional sealing performance for demanding chromatography and analytical applications. Featuring a Level 3 red silicone/natural PTFE septa combination, these high-temperature caps are engineered to provide reliable, leak-free closures for headspace vials, sample storage, and GC/MS workflows where thermal stability and chemical resistance are critical.

• Septa Material: Red silicone/natural PTFE composite for excellent chemical inertness and resealability
• High-Temperature Performance: Designed to withstand elevated temperatures in demanding analytical procedures
• Level 3 Certification: Meets stringent quality standards for low extractables and consistent septum performance
• 18 mm Thread Size: Compatible with standard 18 mm screw-thread headspace and storage vials
• Precision Fit: Engineered for secure, reproducible sealing to minimize sample evaporation and contamination
• Convenient Pack Size: 100 caps per package for efficient laboratory inventory management

SKU: 6PMSC18-STH