12-Well Frame Set; Set includes replacement parts for fractionation of 12 samples: well frames (12 wells), cover seals, electrode pads, glycerol solution, cover fluid and manual. Does not include IPG gel strips, ampholytes or reagents. To be used with 13-cm IPG gel strips and respective ampholytes. For use with 5188-6444, 5188-6425, 5188-6427.