NOVELTY - The apparatus comprises a process chamber (4), which is flowed through by a treatment liquid, where the positioned product (1) wets on an upper opening (3) of the process chamber. The process chamber that is seperatable by a split and at a separation point consists of a lower part (5) and an upper part (6) positively fitted and exchangeable to the lower part at the separation point. A number and position of the product supports in the area of the upper opening of the upper parts are adapted to the layout of the individual products to be produced with the upper parts.    USE - Apparatus for the wet treatment of a side and/or edges of different flat products as substrate such as a wafer, solar cells or hybrid in production plants.    ADVANTAGE - The apparatus ensures optimal, economical and flexible wet treatment of the side and/or edges of the different flat products in the production plants.    DETAILED DESCRIPTION - The apparatus comprises a process chamber (4), which is flowed through by a treatment liquid, where the positioned product (1) wets on an upper opening (3) of the process chamber. The process chamber that is seperatable by a split and at a separation point consists of a lower part (5) and an upper part (6) positively fitted and exchangeable to the lower part at the separation point. A number and position of the product support in the area of the upper opening of the upper parts are adapted to the layout of the individual products to be produced with the upper parts. Different large-dimensional openings of the upper parts are adapted to the dimensions of different large products. A positive connection that is engaged by a latch or a groove- and a spring connection of lower part and upper part are automatically opened and closed by a gripper. A radial adjustment of the upper part to the lower part is carried out by centering pins and centering bores or by a constructive form closure. The gripper and the gripping points that are adapted to the gripper are present in the operating source to be exchanged. An operating resource such as inlet tube, flow means, anode cap, insoluble anode, light source, light reflector and orifice plates is used in the lower part. An operating resource such as flow means, current limiter, orifice plates, anode, light source, light reflector and electrically conducting product supports is used in the upper part. The upper parts have different lengths. The electrically conducting product supports produce current supply to the product. An arrangement of the electrically conducting product supports takes place over the upper opening, so that an individual column required for diverting the treatment liquid from the process chamber is formed, where the positioning of the products floating on the treatment liquid takes place over the upper opening with or without lateral limiter. The apparatus includes a pump controllable in the flow quantity for the circulation of the treatment liquid, and an exchangeable anode cap for soluble anodes with anode contacts automatically detachable from the anode supports. The insoluble anode is present in the lower part. An electrical contact is intended for galvanizing product at the upper side of the contact. The gripper is used as handling devices or robot arms in a transporting unit, where the anode cap has anode grips for gripping by using the gripper. The light source is intended with or without reflector, which is arranged inside or outside of the process chamber transparent in the area of the light source, for illuminating the bright side of the solar cells to be galvanized. An INDEPENDENT CLAIM is included for a method for the wet treatment of a side and/or edges of different flat products as substrate in production plants.    DESCRIPTION OF DRAWING(S) - The diagram shows a cross-sectional view of a dividable process chamber.    Product (1)    Upper opening (3)    Process chamber (4)    Lower part (5)    Upper part. (6)