Non-sterile polypropylene 12mL tube

Made from durable polypropylene with no rim and may be centrifuged to 3000xg

Safe to freeze to 0C and heat to 135C

Plug caps have two rows of flanges that press against the walls of test tubes, centrifuge tubes, and cuvettes to form a tight, leak-resistant seal. Caps press into the tube and can be pulled out manually.