Stoppers and Closures

Caps, septa, stoppers, and other closures in a range of sizes, colors, and material compositions that provide a leak-proof, spill-proof barrier for jars and bottles during storage and transportation. Compatible with a variety of bottle and jar types.
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Closure Included


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

Thermo Scientific™ LDPE Foam-lined Polypropylene White Caps are for general-purpose HDPE bulk separate containers. The same high quality caps used on our Thermo Scientific certified HDPE environmental sample containers. Bottles sold separately (013-series and 012-series).

I-Chem™ Loose Septa for 24-414 Open Top Caps Thermo Scientific™

Thermo Scientific™ Loose Septa are replacement septa for Thermo Scientific VOA vials and septa bottles with 24-414 open top caps. Loose septa may be used as replacement parts for Thermo Scientific VOA vials and bottles with unbonded septa. Fits the standard 24-414 open top cap.

PTFE-Lined Closed Caps Thermo Scientific™

Thermo Scientific™ PTFE-Lined Closed Caps are replacement caps for Thermo Scientific glass environmental sample bottles, jars, jugs and vials. The same high quality PTFE-lined caps used on our Thermo Scientific glass environmental sample containers.

Septum for AcroSeal™, butyl rubber/teflon, size: 43 x 3 mm, Thermo Scientific™ Thermo Scientific™

This Thermo Scientific brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo...

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

Thermo Scientific™ Septa Caps include a bonded-in 0.045 in. thick septa. The same high quality septa caps used on our Thermo Scientific VOA Vials, septa bottles and septa jars. Processed to meet EPA performance–based specifications for Volatile Organic Analysis.

Filtration Hardware, Accessories, and Spare Parts

Designed for use in a wide range of applications, Thermo Scientific™ Nalgene™ filtration hardware and accessories can be used in conjunction with our various lines of filtration devices.

Nalgene™ Polypropylene Pour Spout Thermo Scientific™

Enjoy easy one-handed liquid dispensing without leaving bottles completely open to the environment. Thermo Scientific™ Nalgene™ Polypropylene Pour Spout is made to fit all Nalgene bottles with 38-430 neck finish. Vented to allow smooth flow for easy liquid dispensing.

Nalgene™ Colored Polypropylene Closures: Bulk Pack Thermo Scientific™

Eliminate spills with Thermo Scientific™ Nalgene™ Colored Polypropylene Closures. These one-piece, linerless closures fit Nalgene™ narrow-mouth 4mL bottles. They feature an integrally molded seal ring and a well-defined closure knurl that makes gripping and capping easy.

Nalgene™ Colored Polypropylene Closures with 38-430 Finish Thermo Scientific™

Ensure leakproof† performance with Thermo Scientific™ Nalgene™ colored closures — one piece and linerless with integrally molded seal ring. The opaque closures protect contents from UV light when used with opaque bottles.

Nalgene™ Colored Polypropylene Closures with 20-415 Finish Thermo Scientific™

Ensure leakproof† performance with Thermo Scientific™ Nalgene™ colored closures — one piece and linerless with integrally molded seal ring. The opaque closures protect contents from UV light when used with opaque bottles.

Nalgene™ Sterile Polypropylene Biotainer Replacement Closures Thermo Scientific™

Protect the contents in your Thermo Scientific™ Biotainer™ bottles and carboys. Thermo Scientific™ Nalgene™ Sterile Polypropylene Biotainer Replacement Closures are for 1, 2, 5, 10 and 20L polycarbonate Biotainers.

Nalgene™ Colored Polypropylene Closures with 24-415 Finish Thermo Scientific™

Ensure leakproof† performance with Thermo Scientific™ Nalgene™ colored closures — one piece and linerless with integrally molded seal ring. The opaque closures protect contents from UV light when used with opaque bottles.

Nalgene™ HDPE Tamper Evident Closures, Sterile, Bulk-Pack Thermo Scientific™

Nalgene™ HDPE Tamper Evident Closures are specially designed for use with PET/PETG square media bottles.

Nalgene™ Closures for Dropper Bottles: Bulk Pack Thermo Scientific™

Order Thermo Scientific™ Nalgene™ Closures for Dropper Bottles to complete the Nalgene Dropper Bottle System. Closures fit dropper bottles Cat. Nos. 312750 and 31275, and are available in multiple colors to help identify reagents.

Sorvall™ High Performance Aluminum Cap for 1L Centrifuge Bottle Thermo Scientific™

Achieve performance up to 20,584 x g with the Thermo Scientific™ Sorvall™ high performance aluminum cap for 1-liter centrifuge bottles, designed for superspeed and large capacity centrifuges. This high-strength aluminum cap enhances bottle support and improves chemical resistance to Phenol solutions...
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