For appropriate flow and connection without crossover of radiator and piping. Advance and reverse motion of heating can be changed by means of adjusting spindle. The pipes can be freely installed. The adjustment of the radiator flow direction can be done subsequently. The radiator connection can be shutoff. Delivery includes flush box and cover. Connection G 3/4 with cone seal to radiator. Radiator connection with external thread G 3/4, with cone seal, for compression adapter. Compression adapters have to be ordered separately.