Bottle Caps

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.

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.

Secure-fitting Thermo Scientific™ Nalgene™ Replacement Screw Closures and Gaskets for Nalgene Carboys provide leakproof† service

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.

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.

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).

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 20 L polycarbonate Biotainers.

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.

Fit Thermo Scientific™ Nalgene™ Narrow-Mouth and Wide-Mouth Bottle Replacement Closures onto Nalgene narrow-mouth and wide-mouth bottles.

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 are specially designed for use with PET/PETG square media bottles.

The Cap for Blood Culture Tube is a premium tube cap with triple lipped internal seal.

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.

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

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.