Abstract: Hydraulic, adjustable shock absorber with a working cylinder and a piston which is fastened to a piston rod and divides the working cylinder into two working chambers, with an equalization chamber located in a jacket tube surrounding the working cylinder, which equalization chamber is connected by means of at least one controllable valve and a bypass channel running inside the jacket tube to one of the working chambers, whereby at least one valve is connected to the shock absorber by means of an opening of a collar of the jacket tube, characterized by the fact that located inside the collar is a pipe socket of the valve which is connected to the collar by means of a seam.