CUSTOM ITEM: Caps, Screw Top, with Silicone Rubber / PTFE Pre-Slit Septa, fitted in smooth sided, Robo Style, soft polypropylene, Yellow Caps. For use with 9-425mm thread, 12x32mm autosampler vials. MICROSOLV Brand. BULK PRICING.

Additional Info:

Pre‑slit septa reduce resistance during autosampler needle entry, improving injection consistency in workflows that require smooth, repeatable penetration.

The 9502S‑35‑Y screw caps feature silicone/PTFE pre‑slit septa that support easier needle entry while helping prevent “septa plunge” into vials during injection. The soft polypropylene Robo Style design enhances compatibility with robotic and automated systems by enabling consistent positioning and cap engagement. This configuration is comparable to Thermo / National Scientific DP® cap styles.

The silicone/PTFE septa provide chemical resistance and sample protection across HPLC, GC, LC‑MS, and GC‑MS workflows. The yellow cap color supports easy identification while maintaining compatibility with standard 9‑425, 12 × 32 mm autosampler vials.


Key Features & Benefits

  • Pre‑slit septa ✅ Easier needle penetration

  • Soft Robo Style cap ✅ Optimized for robotic handling

  • Reduced septa plunge risk ✅ Supports consistent injections

  • Silicone/PTFE septa ✅ Chemical resistance and sample protection

  • Yellow cap format ✅ Easy identification and compatibility


Typical Applications

  • Automated autosampler systems

  • HPLC and UHPLC analysis

  • LC‑MS and GC‑MS workflows

  • High‑throughput laboratories


Important Notes

  • For 9‑425, 12 × 32 mm autosampler vials only

  • Designed for automated and robotic handling systems

  • Pre‑slit septa reduce penetration resistance

  • Comparable to Thermo / National Scientific DP® caps

  • This and other custom items are Custom Ordered and require quotation


Custom Item Pricing Information

Custom Order Item. Inquire for more information.

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