A money-saving alternative to wire racks, with price and space advantages over other plastic racks currently available.  These submersible racks are molded of a special blend of autoclavable polypropylene so that they sink in a water bath and maintain their stability even in agitated water.  Each rack features end plates for labeling as well as numbered and lettered rows for tube identification.  Interlocking feet allow stacking of racks during storage.  Assembly takes only seconds.  Available in white (W), blue (B) or red (R).