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

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

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

Aluminum crimp closures provide a secure leak-resistant seal.

Aluminum crimp closures provide a secure leak-resistant seal.

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.

National Crimp Seals ensure sample security every time.

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

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

Provide a secure leak-resistant seal.

Tear-out seals remove completely allowing content to pour from bottle. Wheaton™ Center Disc Tear-Our Aluminum Seals, Unlined are available in a wide range of sizes and colors.

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

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

Tear-out seals remove completely allowing content to pour from bottle. Wheaton™ Center Disc Tear-Our Aluminum Seals, Unlined are available in a wide range of sizes and colors.

Tear-out seals remove completely allowing content to pour from bottle. Wheaton™ Center Disc Tear-Our Aluminum Seals, Unlined are available in a wide range of sizes and colors.

Tear-off seals remove completely allowing content to pour from bottle. Wheaton™ Tear-Off Aluminum Seals, Unlined are available in a wide range of sizes and colors.

Preassembled seals save time and increase productivity

Thermo Scientific™ National Headspace 20mm Unlined Crimp Seals are compatible with all headspace vials.

14 mm Snap/Crimp Caps and Septa are available in an assortment of materials. Pre-assembled caps and septa minimize contamination from handling.

8mm Crimp Top Closures provide a leak-resistant seal, feature 4mm openings and are available with a variety of septa materials with and without liners.

You can count on a secure, leak-resistant seal with Thermo Scientific™ National Aluminum Crimp Seals.

Allow for easy access to vial contents

Aluminum crimp closures provide a secure leak-resistant seal.

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

Aluminum crimp closures provide a secure leak-resistant seal.

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

Ideal closures for chromatography and other instrumentation applications. Open top seal provides for filling or retrieving contents with a syringe.