10mm Black Screw Cap with Bonded PTFE/Silicone Pre-Slit Septa, 100-pk

These 10mm black screw caps feature a bonded PTFE/silicone septum with pre-slit design, engineered for reliable sample containment and effortless needle penetration in chromatography applications. Ideal for GC and HPLC autosampler vials, the dual-layer septa construction provides excellent chemical resistance and superior resealing properties, ensuring sample integrity throughout your analytical workflow.

• Diameter: 10mm screw cap configuration for standard autosampler vials
• Septa Material: Bonded PTFE/silicone construction offers chemical inertness and optimal sealing performance
• Pre-Slit Design: Enables smooth needle entry and reduces coring for automated sampling systems
• Cap Color: Black for easy identification and light-sensitive sample protection
• Quantity: 100 caps per package for cost-effective laboratory supply
• SKU: 4500-34A