11mm Clear Snap Cap with PTFE/Silicone Septa, 100-pk (SKU: 4011-54)

These premium 11mm clear snap caps feature a PTFE/silicone septa combination, engineered for reliable sample integrity in autosampler vial applications. The PTFE-faced silicone septa provides excellent chemical resistance and resealing properties, making these caps ideal for GC, HPLC, and mass spectrometry workflows where sample purity and consistent needle penetration are critical.

• 11mm snap-top closure design for quick, secure vial sealing
• PTFE/silicone septa offers superior chemical inertness and low extractables
• Clear cap allows for easy visual inspection of septa condition
• Compatible with standard 11mm crimp-top and snap-top autosampler vials
• Excellent resealing capability for multiple injections
• Conveniently packaged in 100-piece quantities for laboratory efficiency