(Click to see larger image) Keep your samples in line with Tritech Research's test tube racks! We have a variety of colors available for color-coding specific projects or identifying hazardous samples. The conical shaped wells keep tubes centered and upright. Manufactured of polypropylene, the 96 well (8x12 format) Test Tube Racks are suitable for autoclaving. Our 96-well version is reversable! One side of the rack is designed to accomodate 0.5mL microcentrifuge tubes. The reverse side holds 1.5mL to 2.0mL microcentrifuge tubes and screw cap microcentrifuge tubes.