Meet your certification and documentation needs with our Level 2 Thermo Scientific™ SureSTART™ Specification Certified Screw Vial and Cap Kits. Select Level 2 products for high throughput applications, when robustness and reproducibility are key. Choose from a variety of kits containing screw or short thread screw vials with marking spots in clear or amber glass and polypropylene caps with silicone/PTFE septa of various hardness values designed to reduce autosampler needle issues. Pre-slit and bonded septa options are available. Select kits with SureStop™ vials and/or AVCS™ screw caps for effective seals, consistent data, and increased sample throughput.