CUSTOM ITEM: Caps, Screw Top, with Silicone Rubber / PTFE Pre-Slit Septa, bonded in "knurled", polypropylene, Red Caps. For use with 9-425mm thread, 12x32mm autosampler vials. MICROSOLV Brand. BULK PRICING.
Additional Info:
Pre‑slit septa are designed to reduce needle penetration resistance while maintaining effective sealing performance in autosampler workflows.
The 9502S‑30C‑R screw caps feature bonded silicone/PTFE pre‑slit septa that improve penetration consistency and help prevent “septa plunge” into vials during injections. The bonded design ensures the septa remains fixed in the cap, reducing the risk of dislodging during handling, transport, or repeated use.
The silicone/PTFE construction provides chemical resistance and supports reliable performance across HPLC, GC, LC‑MS, and GC‑MS applications. The red polypropylene cap includes a knurled exterior for secure grip and consistent torque when sealing standard 9‑425, 12 × 32 mm autosampler vials.
Key Features & Benefits
Pre‑slit septa ✅ Easier needle penetration
Bonded septa design ✅ Prevents septa plunge and dislodging
Silicone/PTFE construction ✅ Chemical resistance and sealing performance
Fits 12 × 32 mm autosampler vials ✅ Standard 9‑425 compatibility
Red knurled cap ✅ Secure handling and identification
Typical Applications
HPLC and UHPLC analysis
LC‑MS and GC‑MS workflows
Waters® Alliance and Acquity systems
Routine and specialized analytical testing
Important Notes
For 9‑425, 12 × 32 mm autosampler vials only
Suitable for multiple injections
Bonded pre‑slit septa—no assembly required
Designed for improved penetration performance
This and other custom items are Custom Ordered and require quotation
Additional Resources
Custom Item Pricing Information