13-425mm Black Open Hole Polypropylene Closure with Red PTFE/Silicone Septa

This premium 13-425mm threaded closure system combines a durable black polypropylene cap with a high-quality red PTFE/silicone septum, designed for reliable sample containment and needle piercing applications. Ideal for HPLC, GC autosampler vials, and general laboratory sample storage, this closure ensures excellent chemical resistance and consistent seal integrity for chromatography, pharmaceutical analysis, and quality control laboratories.

• Thread Size: 13-425mm standard screw thread for universal vial compatibility
• Closure Material: Black polypropylene with open-hole center for septum access
• Septa Composition: Red PTFE/Silicone bonded septum for superior chemical inertness and resealability
• Septa Thickness: 0.065" for optimal needle penetration and secure sealing
• Quantity: 1000 pieces per case for high-volume laboratory needs
• SKU: 806550-13