Fulfill your requirements for certification and documentation with our Thermo Scientific ™ Surestart ™ MSCert+ screw vials and closures of level 3. Select level 3 for the ultimate performance and sensitivity of your methods while ensuring the highest sample security and integrity. The variety of kits that contain screw glasses with short threads and marking points from clear or brown las as well as polypropylene caps with silicone/PTFE septa to reduce problems with car sampler needles. and/or AVCS ™ screw caps for effective seals, consistent data and increased sample throughput.