Caps, Screw Top, with White Silicone Rubber / Natural PTFE Pre-Slit Septa, fitted in "knurled", polypropylene, Blue Caps. For use with 9-425mm thread, 12x32mm autosampler vials. BASIK Brand. 1000/CS.
Additional Info:
The 9502S‑E‑35B‑M screw caps are our most economical and lowest‑cost option with pre‑slit septa for autosampler vials, ideal for high‑throughput laboratories seeking consistent injection performance combined with maximum cost efficiency.
Each cap is fitted with white silicone rubber septa faced with natural PTFE, offering the same chemical inertness and durability as red PTFE materials, without added dyes. The pre‑slit septa design allows smooth, consistent needle penetration and reliable resealing, helping reduce septa coring and injection force during routine operation.
Optimized for standard 9‑425 vial configurations, these caps are commonly recommended for use with Waters® Alliance and Acquity™ instruments, as well as other autosamplers that benefit from pre‑slit septa construction.
This 1000‑count case format provides excellent value for laboratories running continuous HPLC or GC workflows.