Centrifuge, Microcentrifuge Tubes, Screwcaps with O-Ring, Sample Tubes, Polypropylene

Screwcap with O-Ring for Sample Tubes
These caps have been designed for the storage and transportation of biological material. They are manufactured from non-toxic polypropylene and offer strength and clarity. The screw caps are made of polypropylene, providing the same coefficient of expansion as the tubes. This along with a polypropylene inner lip ensures a leakproof seal, even at changing temperatures. The caps feature a long skirt and a super-fast thread design that allows them to be removed or sealed with a single turn.