This is the preferred unit for routine mini protein electrophoresis. This unit incorporates a sealing system which is compatible with all major types of 8 x 10cm and 10 x 10cm precast gels. Gel casting and running utilize the same insert so no transfer of glass plates during gel casting is necessary. The insert contains sliding clamps allowing very rapid set up of both hand cast and precast gels. Ultra soft silicone seals and pressure bars which surround the glass plates guarantee leak proof gel casting. 2mm thick glass plates prevent breakage and have bonded spacers for convenience.