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 and 1.7 ml glass high recovery screw microvials for <2 ml samples (level 2). Select level 2 products for high-throughput applications, when robustness and reproducibility are key.

Choose from polypropylene caps with all-purpose silicone/PTFE septa of various hardness values 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.