Clear Snap Closure with Blue PTFE/White Silicone Septa, Pre-slit (100-pk) | SKU: 4011-55

These premium snap closures feature a blue PTFE/white silicone septum designed for reliable sample containment in chromatography and analytical laboratory applications. The pre-slit configuration enables convenient needle penetration for autosampler systems while maintaining excellent chemical resistance and minimizing sample contamination. Ideal for HPLC, GC, and general analytical workflows where consistent sealing performance and ease of use are essential.

• Blue PTFE/white silicone septum provides excellent chemical inertness and low extractables for sensitive analyses
• Pre-slit design allows smooth needle entry and reduces coring during automated sampling
• Clear snap closure enables easy visual inspection of vial contents and fill levels
• Snap-on application ensures quick, secure sealing without crimping tools
• Compatible with standard 11mm snap-top vials for chromatography systems
• Convenient 100-pack quantity supports high-throughput laboratory demands