Sterile LARGE Centrifuge Conical Tubes • Available in 175ml, 225ml, 250ml, and 500ml sizes with ScrewCap • Temperature (-80° to +120°C) and chemical resistance • Molded Graduations, Polypropylene Tube, Leak-Proof HDPE ScrewCap • Sterile, and RNase, DNase & Pyrogen FREE; 6,000xg maximum RCF