DGGE 4 Place dual cassettes. Gel size 17.7cm (w) x 22cm (l). Includes Electrophoresis tank, 2 dual cassettes, heater/stirrer/buffer cycler, gradient maker, 8 combs (4 each 1 well and 4 each 20 well combs), 8 sets of spacers (4 sets for vertical DGGE and 4 sets for perpendicular DGGE), 4 glass plate sets, 8 pieces gel wrap gasket, 24 each #1 clamps, and 36 each #2 clamps, glass safety cover, buffer siphon pump, power leads, thermometer, EPS-300 X 300V power supply and MPP-100 Mini-Pump.