Aluminum 20mm Crimp Seals

Prevent septa push through and over- and under-tightening. With Advanced Vial Closure System (AVCS) technology built into 9 mm Thermo Scientific™ 9 mm Autosampler Vial Screw Caps and Septa you will get an optimal, consistent seal every time. With just one turn, they offer easy-on, easy-off convenience, and are a cost effective alternative to caps with bonded septa. Choose from Thermo Scientific™, Thermo Scientific™ National™, and Thermo Scientific™ Chromacol™ brands.

Thermo Scientific™ 8mm Autosampler Vial Screw Thread Caps feature an 8-425 thread finish and are available in an assortment of styles to match your HPLC, GC or IC application needs. Convenient pre-assembled caps and septa minimize contamination from handling. Choose from Thermo Scientific™, Thermo Scientific™ National™, and Thermo Scientific™ Chromacol™ brands.

Use Thermo Scientific™ SureSTART™ 11 mm Snap Caps with snap vials that have an 11 mm opening, including our SureSTART 2 mL Glass Snap Vials, 1.5 mL Total Recovery Glass Snap Vials, High Recovery Glass Snap Vials, and Glass Snap Microvials for <2 mL samples (Level 3). Select Level 3 products for ultimate performance and sensitivity from your methods, while maintaining the highest levels of sample security and integrity. Choose from soft polyethylene caps with double snap functionality that guarantees a tight seal. Our snap caps include all-purpose silicone/PTFE septa of various hardness values designed to reduce autosampler needle issues. Pre-slit septa options are available for those who want septa that prevent vial-overfilling issues and re-seal well enough to avoid sample evaporation.