Corning® 50 mL clear polypropylene (PP) conical bottom centrifuge tubes come with the advanced polyethylene CentriStar™ caps and are bulk packed 25 per bulk bag.
Foam racks can be purchased separately. The CentriStar™ cap has an easy-on/easy-off flat top and offers advanced ergonomics with its wider knurls and roll-over edge design for easier gripping.
This leak-proof design comes with a revolutionary plug feature that virtually eliminated all seepage when used under recommended conditions.