Replacement or Alternative for TFCERT5000-193W, TFCERT5000-93, TFCERT5000-93W, TFCERT5000-S93WMeet your certification and documentation needs with our Level 3 Thermo Scientific™ SureSTART™ HPLC and GC 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