For soundproof walls, also for installation directly opposite one another, from wall thickness 125 mm, can be combined with each other and with the device box, for panel thicknesses up to: 40 mm, 6 cable entries up to Ø 11.5 mm, 2 pipe entries up to M25, connecting pieces per PU: 5, halogen-free, dimensions (D x Ø): 61 x 68 mm