Flush-mounted device box for use in masonry with an installation depth of at least 66 mm. . 4 x 3 screw domes . Connecting piece with bayonet lock that can be coupled on both sides . 6 combined pipe inlets 20 and 25 mm . 4 inlets up to 20 mm . 2 inlets up to 14 mm . 1 inlet up to 20 mm in the floor