Catalog Number - 9502C-34CT

Snap caps provide a fast, press‑fit sealing solution that simplifies vial preparation while maintaining reliable autosampler performance. The Y‑shape pre‑slit septa increases the available needle strike area, improving alignment and reducing resistance during penetration.

The 9502C‑34CT Snap Caps combine a proven silicone rubber / PTFE septa design with Y‑slit functionality to support consistent performance in HPLC and LC‑MS workflows. The PTFE barrier delivers strong chemical resistance, while the silicone backing helps maintain proper sealing for routine applications.

Pre‑slit septa are commonly recommended for Waters® Alliance instruments, where smooth and repeatable needle entry is critical. While the Y‑slit offers easier penetration and a larger target area, it provides slightly reduced resealing compared to single‑slit septa. The natural transparent cap allows visual inspection and supports sample identification without color interference.

Key Features & Benefits

• Y‑shape pre‑slit septa ✅ Improved needle targeting and alignment

• Easier penetration ✅ Reduced resistance during injection

• PTFE/silicone septa ✅ Chemical resistance and sample protection

• Snap-top closure ✅ Fast, press-fit sealing without threading

• Natural transparent cap ✅ Enables visibility and identification

• Fits 12 × 32 mm snap top vials ✅ Standard 11 mm compatibility

Typical Applications

• HPLC and UHPLC analysis

• LC‑MS workflows

• Waters® Alliance systems

• Routine analytical laboratories

• Methods requiring improved needle targeting

Important Notes

• For 11 mm, 12 × 32 mm snap top autosampler vials only

• Y‑slit design allows easier penetration but reduces resealing vs single‑slit septa

• Suitable for multiple injections depending on method requirements

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

Custom Item Pricing Information

• Please contact Customer Service for formal quotation, lead time, and ordering assistance.