Biovision’s DiaEasy™ dialyzer (3 ml) supporting trays are designed to support our DiaEasy™ Dialyzer tubes of 3 ml volume during the process of electro-elution of any protein, protein-protein, or protein- DNA complexes from non-denaturing and denaturing (SDS) polyacrylamide gels, and for extraction of oligonucleotides, RNA, and DNA from both polyacrylamide and agarose gels (Figure 1). These trays fit into most horizontal electrophoresis units and are very convenient to use (Figure 2). Each of these trays can hold upto 3 tubes.