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.

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

Ready to use combination seals.

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.

Polypropylene 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.

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

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

Provide a reproducible, secure vial closure.

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

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

Ready to use combination seals.

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

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

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

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

Aluminum crimp closures provide a secure leak-resistant seal.

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.

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.

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

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

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

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.

National Crimp Seals ensure sample security every time.

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.

Aluminum crimp closures provide a secure leak-resistant seal.