10mm Screw Closure with Red PTFE/White Silicone Septa, Black Cap, 100-pk

These premium 10mm screw closures feature a high-performance red PTFE/white silicone septum combination, ideal for GC and HPLC autosampler applications. The black polypropylene cap provides secure, leak-free sealing for volatile samples, ensuring sample integrity during storage and analysis. Perfect for use with standard 10mm screw thread vials in chromatography, pharmaceutical testing, and quality control laboratories.

• Septum Material: Red PTFE/White Silicone – chemically inert PTFE layer prevents sample contamination while silicone provides excellent resealing properties
• Cap Color: Black polypropylene construction for durability and chemical resistance
• Thread Size: 10mm screw thread compatible with standard autosampler vials
• Package Quantity: 100 closures per pack for laboratory convenience
• Applications: GC/MS, HPLC, sample storage, and analytical testing
• P/N: 4500-60A