Preassembled Screw Thread Closures and Septa (10-425mm) - Black - JGF 806050-10

JG Finneran closures can be snapped on and off by hand which eliminates the need for metal crimping and decapping tools, thus reducing potential hazards due to sharp Aluminum metal edges. closures are provided with Polytetrafluoroethylene (PTFE)/Butyl Rubber/Silicone septum. Large opening top provides a greater target area for needle penetration. Linerless Snap Top Caps™ are available with or without starburst. Starburst allows for easy needle penetration. Snap Top Caps™ are color coded for easy sample identification. The 11mm Snap Top Caps™ can also be used on 12x32mm Snap Seal™ vials.