White Polypropylene Caps for Screw Thread Culture Tubes

White polypropylene. Of one-piece construction with a seal achieved by a unique interior design. Will withstand repeated autoclavings, but closures should be removed or loosely applied as they may melt. Intended for use with 73750, 73760 and 73770 disposable culture tubes and 73785 disposable centrifuge tubes. Designed from ASTM Specification E982.