Bottle Caps

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.

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).

Screw cap with cap liner sealing and high temperature and chemical resistance.

Ideal for chemically and thermally demanding processes, including hot-air sterilization up to 200°C. Meets FDA/USP/EP/JP requirements, making it suitable for the pharmaceutical industry. PTFE-coated silicone cap liner ensures a tight seal, ideal for long-term storage and transport.

Screw cap with cap liner sealing and high temperature and chemical resistance.

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.

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.

Durable, screw-thread caps provide secure closure

Open top closures providing excellent chemical resistance

A resusable connector GL 45 cap with two ports for connecting tubing.

Replacement Black Phenolic Screw Caps for Media Bottles

Features PTFE faced (14B) styrene-butadiene rubber liner

Nontoxic white styrene-butadiene rubber liner

15mm extended controlled dropper tip made of LDPE (Low Density Polyethylene)