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.
Products (27)
Learn More (4)
Documents & Support (6)
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    Environmental Sampling Bottle Closures (4)
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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.
This Thermo Scientific Chemicals 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...
Fit Thermo Scientific™ Nalgene™ Narrow-Mouth and Wide-Mouth Bottle Replacement Closures onto Nalgene narrow-mouth and wide-mouth bottles.
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.
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.
This Thermo Scientific Chemicals 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...
Perform fluid transfer in the lab or field with the 70mm Thermo Scientific™ Nalgene™ Polypropylene Fluid-Transfer Closure. Closures are compatible with Nalgene Mason Jars (Cat. No. 2115), 125 and 500mL Nalgene Straight-sided jars (Cat. Nos. 2116, 2117, 2118, 2119), sold separately.
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.
Secure-fitting Thermo Scientific™ Nalgene™ Replacement Screw Closures and Gaskets for Nalgene Carboys provide leakproof† service
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.
Seal PET/PETG square media bottles with Thermo Scientific™ Nalgene™ HDPE Closures, which provide a reliable and leakproof† seal. These reliable, high-density polyethylene closures are gamma irradiated to provide a 10-6 Sterility Assurance Level (SAL).
Combine the elastomeric sealing of silicone with nonreactive polytetrafluoroethylene reagent contact surfaces in Thermo Scientific™ Nalgene™ Septum Closures, for use with Nalgene™ Sterile PET & PETG media bottles.
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.
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).
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.
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Whether your cleaning needs require high volumes or smaller quantities, Thermo Scientific critical container processing and cleaning services have the flexibility to meet your requirements. We have the capability to clean plastic or glass containers up to 50 L.
Introducing our modernized Thermo Scientific SureSTART collection of vials and caps. Because experiments, analytes, or budgets are different, we’ve organized SureSTART vials and closures into three performance levels to provide you with the affordability, compatibility and performance you need.
Documents & Support (6)
EP Custom Cleaning Services Brochure [EN]
EP Custom Cleaning Services Brochure [EN]