Rottner Depot 6 letterbox system. The Depot 6 letterbox system from Rottner is made of high-quality sheet steel. The particularly slim space-saving construction of this system is ideal for narrow staircases. The Depot 6 mailbox system has 6 compartments for 6 parties. Each compartment is equipped with a plastic name plate holder and is protected from unauthorised access by means of a cylinder lock (including 2 keys). The post material up to size DIN C4 is inserted at an angle downwards. The holes on the back panel allow easy attachment to the wall, including mounting hardware. Manufacturer: Rottner. Colour: silver/black. Technical details. External dimensions (H x W x D): 824 x 385 x 140 mm. Inner dimensions (H x W x D): 270 x 380 x 60 mm. Weight: 7.5 kg. Volume: 6.156.156 litres. x H) 330 x 20 mm lock cylinder lock with 2 keys per compartment. Box contents: 4 spacers, 4 dowels, 4 screws, 12 cylinder keys. The construction of the mailbox system allows easy attachment to the wall. Drilling holes in the back wall. For outdoor mounting, we recommend a weather-protected area