Caps, Snap Top, with White Silicone Rubber / Tan PTFE Pre-Slit Septa, fitted in smooth, polyethylene, Blue Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. AQ Brand. 100/PK.
Additional Info:
Snap caps provide a fast, press‑fit sealing solution that simplifies vial preparation while maintaining reliable autosampler performance. The pre‑slit septa design reduces needle resistance during injections, helping improve consistency and reduce wear on autosampler components.
The 9502C‑31‑MB AQ Snap Caps are one of the most widely used and trusted snap cap configurations, with over 25 years of proven performance in analytical laboratories. The tan PTFE / white silicone septa offer strong chemical resistance while supporting reliable resealing for multiple injections.
Pre‑slit septa are commonly recommended for Waters® Alliance systems, where smooth needle entry is critical for reproducible performance. The smooth blue polyethylene cap allows easy application and removal while supporting efficient workflow organization.
Key Features & Benefits
Pre‑slit septa ✅ Easier needle penetration
Proven design ✅ Over 25 years of market use
PTFE/silicone septa ✅ Chemical resistance and sample protection
Reliable resealing ✅ Supports multiple injections
Snap-top closure ✅ Fast, press-fit sealing without threading
Blue cap format ✅ Supports identification and workflow organization
Typical Applications
HPLC and UHPLC analysis
LC‑MS workflows
Waters® Alliance systems
Routine and high-throughput laboratories
Important Notes
For 11 mm, 12 × 32 mm snap top autosampler vials only
Suitable for multiple injections
Pre‑slit septa reduces penetration resistance
Comparable to Waters® HPLC Certified Snap Caps