These standard round-bottom culture tubes are manufactured from 51 expansion borosilicate glass that conforms to ASTM Type I, Class B and USP Type I requirements. The tubes can be reused many times. The caps have a white 14B styrene-butadiene rubber liner or a PTFE faced 14B styrene-butadiene…

Manufactured from ultra-clear virgin polypropylene, the WHEATON® Centrifuge Tube range meets the needs of most laboratory users for routine centrifugation applications. Available in sizes 15mL and 50mL, with a leak-free cap and large writing area, they are ideal for a wide range of sample handling applications.