SureSTART™ Level 3 Screw Cap, Open Top, 9 mm, Yellow Polypropylene, with 1 mm Thick Red PTFE/White Silicone/Red PTFE

Use Thermo Scientific™ SureSTART™ 9 mm Screw Caps with screw vials that have a 9 mm opening, including our SureSTART 2 mL Glass Screw Vials, 2 mL Gold-Grade Glass Screw Vials, Total Recovery Glass Screw Microvials for <2 mL samples, 1.7 mL High Recovery Glass Screw Vials, and Glass Screw 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 polypropylene caps with all-purpose silicone/PTFE septa designed to reduce autosampler needle issues. Pre-slit and bonded septa options are available. Our AVCS™ caps incorporate Advanced Vial Closure System technology to ensure optimal seal compression when closing a vial. Use AVCS screw caps with our SureStop™ vials for effective seals, consistent data, and increased sample throughput.