Meet your certification and documentation needs with our Level 3 Thermo Scientific™ SureSTART™ Specification Certified Screw Vial and Cap Kits. Select Level 3 products for ultimate performance and sensitivity from your methods, while maintaining the highest levels of sample security and integrity. Choose from a variety of kits containing short thread screw vials in glass or TPX and polypropylene caps with silicone/PTFE septa designed to reduce autosampler needle issues. Bonded septa options are available. Select kits with SureStop™ vials and/or AVCS™ screw caps for effective seals, consistent data, and increased sample throughput.