Radiator connection from below, with flat seal, submerged pipe l = 290 mm, Ø =11 mm. Pipe centre distance 40 mm. The radiator can be removed while the system is under pressure. The valve upper part can be changed by means of HERZ Changefix Tool. Pipe connections G 3/4 with cone. Pipe connections have to be ordered separately. Circulation brake 1 6222 01 has to be ordered separately.