Nalgene™ Carboy Replacement Screw Closures and Gaskets

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.

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.

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. Use these closures for siphoning, evacuation, bleeding of fluid lines, collecting samples or transferring reagents. Two vent ports are molded into the top of the closure (external male ports only; no connection for internal drop tubes), allowing for external connection to a vacuum or pressure pump with 1/4″ I.D. flexible tubing (tubing sold separately).