Bottle Caps

Caps in a range of styles, sizes, colors, and material compositions that provide a leak-proof, spill-proof barrier for bottles during storage and transportation. Products are compatible with a variety of bottle types and include screw caps and pour spout caps.
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Closure Included

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™ 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.

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...

Heat-Shrink Bands for Nalgene™ PETG Media Bottles Thermo Scientific™

Ensure the integrity of bottle contents with Thermo Scientific™ Heat-Shrink Bands for Thermo Scientific™ Nalgene™ PETG Media Bottles. Simply apply the recommended application torque for Thermo Scientific Nalgene closures and slide the heat-shrink band over the closure and bottle neck.

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™ 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.

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™ Autoclavable Septum Closure, Autoclavable, 38-430 size Thermo Scientific™

Enable aseptic injection of reagent or sample withdrawal without compromising sterility or integrity of contents with Thermo Scientific™ Nalgene™ Autoclavable Septum Closure, suitable for use with any bottle or container with 38-430 neck, including Nalgene culture vessels.

Nalgene™ Polypropylene Fluid-Transfer Closure Thermo Scientific™

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.

Nalgene™ Centrifuge Bottle Sealing Cap Assembly Thermo Scientific™

Provide an added level of reliability when running at maximum speeds with the Thermo Scientific™ Nalgene™ Centrifuge Bottle Sealing Cap Assembly, for use with selected 250 and 290mL Thermo Scientific™ Nalgene™ centrifuge bottles with 38mm closure size.

Nalgene™ HDPE Closures: Sterile, Bulk Pack Thermo Scientific™

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).

Nalgene™ Septum Closures: Sterile, Bulk Pack, 38-430mm Thermo Scientific™

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.
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