Minimize contamination from handling with pre-assembled caps and septa; compatible with most HPLC and GC autosamplers.

Prevent septa push through and over- and under-tightening. With AVCS built into these 9 mm screw caps you will get an optimal, consistent seal every time.

Use these caps with standard 11mm chromatography vials. JG Finneran™ Crimp Caps feature an open top for filling and retrieving samples with a syringe.

Wide opening vials require Inserts with 6mm diameter.

Polyethylene caps are chemically inert and suitable for most chromatography applications.

11mm Wide Opening Snap-It Caps and Septa are easy to apply and easy to remove and fully compatible with all Snap-It vials.

Pre-assembled caps and septa are convenient and minimize contamination from handling.

Most septa are laminated on one side with PTFE for high chemical resistance and an inert barrier between sample and carrier material.

Clear glass or polypropylene inserts for 9mm HPLC and GC autosampler vials are available in a variety of configurations with usable volumes from 160μL to 3.5mL.

Pre-assembled caps and septa are convenient and minimize contamination from handling.

Pre-assembled caps and septa are convenient and minimize contamination from handling.

Septa for 8-425 Screw Thread Caps are constructed of PTFE, PTFE/rubber, or PTFE/silicone to suit a variety of applications.

Thermo Scientific™ National Flat-Bottom Vial Inserts are bulk-packed for convenience.

Aluminum crimp closures provide a secure leak-resistant seal.

Ensure sample security and integrity with inert vials that have the highest recovery rates, an ultra-low pH shift, and lowest alkali content.

Available in an variety of styles to match your application. Pre-assembled caps and septa minimize contamination.

Headspace vials are available in clear or amber glass with a round or flat base, a crimp seal with a beveled or square edge finish, or with a screw-thread finish. Headspace vials, septum, and caps can be purchased in various quantities separately or together as convenience kits to fit your laboratory needs.

Pressure release seals (Aluminum-PR) are designed to open when internal pressure exceeds 3.0±0.5bar.

Pre-assembled caps and septa are convenient and minimize contamination from handling.

Pre-assembled caps and septa are convenient and minimize contamination from handling.

Polypropylene caps are chemically inert and suitable for most chromatography applications.

13mm Screw Thread Caps feature a 13-425 thread finish. Available in an assortment of styles, pre-assembled caps and septa minimize contamination.

Polypropylene caps are chemically inert and suitable for most chromatography applications.

Aluminum crimp closures provide a secure leak-resistant seal.

Thermo Scientific™ Chromacol Snap Caps for Vials are available with a selection of prefitted seals and colors.

Thermo Scientific™ National Closures with Prefitted Septa are available in easy-to-apply Kim-Snap or standard aluminum variety to suit your application needs.

Thermo Scientific™ National Vial Septa are designed for use with 4mL screw-thread vials.

Minimize the risk of contamination with quick, convenient Thermo Scientific™ National 20mm Crimp Seals with Septa.

Use these inserts for a variety of applications. JG Finneran™ Conical Inserts feature a polymer spring which acts as a shock absorber and protects against breakage if the needle bottoms out.