The compensation frame is necessary if the wall is thinner than 320 mm and the insert protrudes too far from the wall so that the outer cover can no longer be installed. When installing the outer cover on the compensation frame, a mounting plate (accessory) is required (exception: plastic outer cover PPB30 AK). Two compensation frames can also be mounted on top of each other.Article: PPB 30 ARW, Installation location: external wall, Installation position: horizontal, Material: aluminum, Color: white powder-coated, similar to RAL 9010, Weight: 0.33 kg, Weight with packaging: 0.53 kg, Width: 260 mm, Height: 260 mm, Depth: 55 mm, Width with packaging: 295 mm, Height with packaging: 320 mm, Depth with packaging: 86 mm