The mini series electrophoresis gel units are ideal for a wide range of samples including those from plasmid preps, PCR reactions, restriction fragments, RFLP analyses etc.. Mini series units offer very fast separation of DNA and RNA restriction fragments in agarose gels. The thick UV transparent gel casting trays are manufactured with end gaskets which form a seal with the tank wall when the tray is inserted across the tank at 90 degrees to the running position. This provides a quick simple and reliable tape free gel pouring directly into the electrophoresis running tank.