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. 1000/CS
Additional Info:
Pre‑slit septa reduce resistance during autosampler needle entry while maintaining reliable sealing performance in routine and high‑volume workflows.
The 9502S‑30C‑R‑M 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 stays securely in place, reducing the risk of dislodging during transport or repeated use, while supporting dependable performance in systems such as Waters® Alliance and Acquity.
The silicone/PTFE construction provides chemical resistance and sample protection across HPLC, GC, LC‑MS, and GC‑MS applications. The red polypropylene cap includes a knurled exterior for secure handling 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
High‑throughput analytical laboratories
Important Notes
For 9‑425, 12 × 32 mm autosampler vials only
Suitable for multiple injections
Bonded pre‑slit septa—no assembly required
Case quantity format (1000/CS)