Closure Septum Autoclavable 38-430

Polypropylene closure with a thermoplastic elastomer septum
Closure system suitable for use with any bottle or container with a 38-430 neck, including NALGENE culture vessels and culture vessel mixing system, media bottles and other square bottles
Allows aseptic injection of reagent or sample withdrawal without compromising sterility or integrity of contents
Use with 18 gauge or smaller needle