Meet your certification and documentation needs with our Level 1 Thermo Scientific™ SureSTART™ Specification Certified Propylene Vial Insert and Cap Kits. Select Level 1 products for an affordable option for everyday chromatography analysis using core detector technology. Choose from a variety of kits containing short thread screw vials in clear propylene and polypropylene caps with silicone/PTFE septa of various hardness values designed to reduce autosampler needle issues. Pre-slit septa options are available.