18mm Magnetic Cap with Blue Silicone/Clear PTFE Septa, 5000-Pack

These 18mm magnetic screw caps feature a premium blue silicone/clear PTFE septum combination, engineered for superior sealing performance in automated and manual chromatography applications. The magnetic closure system ensures secure, consistent sealing while enabling efficient handling with magnetic cap racks and automated sampling systems. Ideal for GC and HPLC applications, pharmaceutical analysis, environmental testing, and quality control laboratories requiring high-throughput sample processing with reliable septum integrity.

• SKU: 6PMSC18-ST2F
• Quantity: 5000 caps per pack for high-volume laboratory operations
• Septum Composition: Blue silicone outer layer with clear PTFE inner liner for chemical resistance and optimal resealing properties
• Cap Size: 18mm diameter, compatible with standard 18mm headspace and screw-thread vials
• Magnetic Design: Enables efficient handling with magnetic pick-up tools and automated capping systems
• Applications: Headspace analysis, GC/MS, environmental sampling, and pharmaceutical QC testing