Caps and Closures

Thermo Scientific™ Open-Top Septa Caps, 24-414mm, bonded septa, bulk

Thermo Scientific™ Septa Caps include a bonded-in 0.045″ thick septa.

Thermo Scientific™ Nalgene™ Colored Polypropylene Closures: Bulk Pack Available on GSA/VA Contract for Federal Government customers only.

Eliminate spills with one-piece Thermo Scientific™ Nalgene™ Colored Polypropylene Closures, which fit Nalgene narrow-mouth 4mL bottles.

Thermo Scientific™ Nalgene™ Narrow-Mouth and Wide-Mouth Bottle Replacement Closures Available on GSA/VA Contract for Federal Government customers only.

Fit these replacement closures onto Thermo Scientific™ Nalgene™ narrow-mouth and wide-mouth bottles.

Thermo Scientific™ Caps for Nunclon™ Delta Flasks

Protect your valuable cell culture samples. These caps for Thermo Scientific™ Nunclon™ Delta Flasks are offered in two styles—vent/close, filter—to meet application needs.

Thermo Scientific™ Nalgene™ Colored Polypropylene Closures with 38-430 Finish Available on GSA/VA Contract for Federal Government customers only.

Ensure leakproof performance with Nalgene Colored Polypropylene Closures—one-piece and linerless with integrally molded seal ring.

Thermo Scientific™ Nalgene™ Closures for Dropper Bottles: Bulk Pack Available on GSA/VA Contract for Federal Government customers only.

Order these closures to complete the Thermo Scientific™ Nalgene™ Dropper Bottle System. Closures fit dropper bottles 312750 and 312751.

Fisherbrand™ Soft Glass Rods Products for Science Education

With rounded and fire-polished ends.

Thermo Scientific™ Nalgene™ Mason Jar Replacement Closures Available on GSA/VA Contract for Federal Government customers only.

Fit these replacement closures onto Thermo Scientific™ Nalgene™ Mason Jars.

Thermo Scientific™ Nalgene™ Polypropylene Fluid-Transfer Closure

Perform fluid transfer in the lab or field with this 70mm closure compatible with Thermo Scientific™ Nalgene™ Mason Jars (Cat. No. 2115).

Thermo Scientific™ Nalgene™ Colored Polypropylene Closures with 20-415 Finish Available on GSA/VA Contract for Federal Government customers only.

Ensure leakproof performance with Nalgene Colored Polypropylene Closures—one-piece and linerless with integrally molded seal ring.

Thermo Scientific™ Nalgene™ Carboy Replacement Screw Closures and Gaskets Available on GSA/VA Contract for Federal Government customers only.

Guarantee a leakproof system using Thermo Scientific™ Nalgene™ Replacement Screw Closures and Gaskets.

Fisherbrand™ PTFE Disposable Stir Bars Products for Science Education Available on GSA/VA Contract for Federal Government customers only.

The multifaceted magnetic stirring bar surface adds turbulence relative to similar size smooth cylindrical stirring bars

Thermo Scientific™ Nalgene™ Suspended Magnetic Stir Bars Available on GSA/VA Contract for Federal Government customers only.

Use Nalgene Floating Magnetic Stir Bars for constant low-speed stirring action in tissue culture applications.

Thermo Scientific™ LDPE Foam-lined Polypropylene Caps for Bulk Separates

LDPE-Lined White Caps are for general-purpose HDPE bulk separate containers.

Thermo Scientific™ Nalgene™ Colored Polypropylene Closures with 28-415 Finish Available on GSA/VA Contract for Federal Government customers only.

Ensure leakproof performance with Nalgene Colored Polypropylene Closures—one-piece and linerless with integrally molded seal ring.

Thermo Scientific™ Nalgene™ Colored Polypropylene Closures with 24-415 Finish Available on GSA/VA Contract for Federal Government customers only.

Ensure leakproof performance with Nalgene Colored Polypropylene Closures—one-piece and linerless with integrally molded seal ring.

Fisherbrand™ One-Hole Rubber Stoppers Products for Science Education

Black Natural Rubber/SBR Blend for general purpose uses

Fisherbrand™ Transport-Tube Screw Caps Available on GSA/VA Contract for Federal Government customers only.

Constructed from polyethylene

Thermo Scientific™ Nalgene™ StarHead™ Magnetic Stir Bars Available on GSA/VA Contract for Federal Government customers only.

Greater mixing action at bottom, side, and top of container, even at low stirring speeds

Thermo Scientific™ Nalgene™ HDPE Closures: Sterile, Bulk Pack Available on GSA/VA Contract for Federal Government customers only.

Seal PET/PETG square media bottles with Use Thermo Scientific™ Nalgene™ HDPE Closures, which provide a reliable and leakproof† seal.

Thermo Scientific™ Screw Cap Microcentrifuge Tube Caps Available on GSA/VA Contract for Federal Government customers only.

Prevent leakage under demanding conditions. These screw-cap tube caps with o-rings are optimized for secure short-term storage in low temperatures.

Thermo Scientific™ Nalgene™ Replacement Closures for Economy Wash Bottles Available on GSA/VA Contract for Federal Government customers only.

Through-the-top tubing with closure and stem molded in one piece

Thermo Scientific™ PTFE-Lined Closed Caps

PTFE-Lined Closed Caps are replacement caps for Thermo Scientific glass environmental sample bottles, jars, jugs and vials.

Thermo Scientific™ Nalgene™ Sealing Caps for Oak Ridge Centrifuge Tubes Available on GSA/VA Contract for Federal Government customers only.

Ensure leakproof† service of Thermo Scientific™ Nalgene™ centrifuge bottles at their recommended maximum rated speeds by using these sealing caps.

Thermo Scientific™ Komet Stir Bars

Generate over three times the torque of conventional stirring bars with Thermo Scientific™ Komet Stir Bars, significantly enhancing stirrer performance and versatility.

Thermo Scientific™ Microtiter Tube Plug Strip

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

Fisherbrand™ Octagon Magnetic Stir Bars Products for Science Education Available on GSA/VA Contract for Federal Government customers only.

Octagon magnetic stirring bars with integral pivot ring are the most commonly used shape

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