A screw compressor housing having screw rotor bores, screw rotors, a drive for the screw rotors, and a slider in a slider receptacle for adjusting a volume ratio of the screw compressor and which extends in a direction towards the high-pressure outlet in a guide trough of the slider receptacle that is open towards the screw rotor bores and which is capable of being positioned in a first position and a second position, wherein the volume ratio of the screw compressor is greater in one of the positions than in the other of the positions, the slider connected to a first cylinder element and cooperates with a second cylinder element, the cylinder elements being at least partially arranged in the insertion space and arranged following the slider in the displacement direction thereof on a side of the slider that is opposite the high-pressure outlet.