Shop All Caps & Closures for Vials, Tubes, & Jars

Capitol Vial Universal Test Tube Plug Cap (Thermo Scientific™)

The Thermo Scientific™ Capitol Vial Universal Test Tube Plug Cap fits tubes with 12mm to 16mm diameter.

PTFE/Silicone Discs (Thermo Scientific™)

Combine the inertness of a PTFE coating with the resealability of silicone Thermo Scientific™ PTFE/Silicone Discs.

Samco™ Tube Closures (Thermo Scientific™)

Depend on the reliable performance of these closures, available as two-position snap caps and universal caps.

Chromacol 11mm Crimp Caps (Thermo Scientific™)

Thermo Scientific™ Chromacol Crimp Caps are offered with a selection of liner materials and colors.

Flat PCR Caps, strips of 12 (Thermo Scientific™)

The Thermo Scientific Flat PCR Cap ,Strip of 12 are used for PCR applications and work with the Thermo Scientific 96-well PCR plates and strip tubes. These cap strips are available in either 8- or 12-cap strips. The Flat PCR Cap Strips signature flat cap allows you to label each sample.

Features of the Thermo Scientific Flat PCR Cap Strip

• 8- and 12-cap strips
• Suitable for use with 96-well PCR plates as well as standard and low profile strips
• Flat surface of each cap facilitates sample labeling
• 25 packs of 8

Related Products
Flat PCR Caps, strips of 8
Flat PCR Caps, strips of 12
Low Profile Tubes, strips of 12
Tubes, strips of 12

Nalgene™ Sealing Cap Assemblies (Thermo Scientific™)

Process tubes at their highest rated speed level (10,000 x g or greater) without leakage, even when full with Thermo Scientific™ Nalgene™ Sealing Cap Assemblies.

DRI™ Barbiturate Drugs of Abuse Assays (Thermo Scientific™)

Achieve high analytical accuracy and eliminate time-consuming steps in reagent preparation with ready-to-use assays in liquid form.

Assembled Target™ 10-425 Caps and Septa (Thermo Scientific™)

Minimize contamination from handling with convenient Thermo Scientific™ National Assembled Target 10-425 Caps and Septa.

Closures with Prefitted Septa for 13mm Crimp/Snap-Ring LoVials™ (Thermo Scientific™)

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

Nunc™ Cryobank and Bank-It™ Replacement Caps (Thermo Scientific™)

Ensure contamination-free cap replacement. Closures are supplied racked for manual or automated replacement.

Microtiter Tube Plug Strip (Thermo Scientific™)

Seal 1.2mL microtiter tubes tightly for storage using these polyethylene plug strips.

Aluminum Crimp Seals with Prefitted Septa for 12 x 32mm Vials (Thermo Scientific™)

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

Chromacol Economy Septa for GC Instruments, 9mm economy GC septa (Thermo Scientific™)

Thermo Scientific™ Chromacol Economy Septa withstand temperatures up to 250°C.

Nalgene™ PPCO Micro Packaging Vial Closures for 4.5mL Vials: Sterile, Bulk Pack (Thermo Scientific™)

Quickly identify samples using colored closures offered in green, white or natural, specifically designed for the 4.5mL micro packaging vial.

MicroAmp™ 8-Cap Strip, clear (Applied Biosystems™)

MicroAmp® Cap Strips are designed to fit on MicroAmp® reaction tubes, tube strips, and 96-well plates. They are available in 8-cap and 12-cap strips in clear or an assorted set of red, orange, blue, and green. They have a domed profile and are suitable for end-point PCR. For real-time PCR applications, please see our MicroAmp® Optical 8-Cap Strips (cat. no. 4323032), which have a flat-top profile. Attach the caps using the MicroAmp® Cap Installing Tool.


• Will not interfere with sample reading
• Provide a tight seal to minimize evaporation
• Easy to apply and remove

Minimize Evaporation
Use MicroAmp® Caps Strips to seal the tubes containing your precious samples. This will reduce the possibility of contamination among sample wells and help ensure reliable results.

Easy to Use
Use the MicroAmp® Cap Installing Tool to push the caps down and form a tight seal. When ready, just peel away the caps using the tabs at the end.

Colored for Organization
These caps are available in different colors to help you keep track of your tubes during assay preparation.