HDPE Coated Wire Tube Racks fit most 30-33mm bottles, vials, tubes.Two Configurations Available: 12 Place, 50 Place.Durable racks for transport or sample handling.Chemically-resistant, HDPE coated wire racks are good to -40° C.Suitable for conical, round or flat bottom, glass or plastic, tubes and bottles.Rack suitable for universal, McCartney and Scintillation vials and low-profile tubes up to 33 dia.Fits new 25mL conical tubes from Eppendorf.Mesh bottom support.Autoclavable