Kimble® Economy Polypropylene Screw Thread Culture Tube Screw Caps, Linerless

These economy polypropylene linerless screw caps have a one-piece construction with a seal achieved by a unique interior design. It will withstand repeated autoclavings, but closures should be removed or loosely applied as they may melt. Intended for use with disposable culture tubes and disposable centrifuge tubes. Designed from ASTM Specification E982.