Autofil® Centrifuge Bottles: are designed specifically to assist Life Science researchers in processing samples for cell suspensions, cell lysates, tissue homogenates, and organ homogenates.Autofil® Centrifuge Bottles are available in 250ml or 500ml and fit a wide range of rotors. Material options include polycarbonate or polypropylene with your choice of a traditional screw cap or a leak-proof sealing cap with silicone O-ring.Our centrifuge bottles feature thick walls that hold up to reuse along with wide mouths that simplifyfilling and pouring liquids. Each Autofil® Centrifuge Bottle also features large, clear-molded graduationmarkings and a frosted area for convenient labeling.