The Primo THD-45 thermobox with a diameter of 60 mm eliminates the need for time-consuming plastering as with conventional flush-mounted boxes. The THD-45 thermobox is installed quickly and easily in just a few seconds using the specially developed thermal foam. The depth of the THD 45 thermobox has been reduced from 68 to 46 mm compared to the THD-70 thermobox. This makes it ideal for narrow walls made of solid plasterboard. The SCS connection technology allows several thermoboxes to be lined up and firmly connected - ideal for quick wiring or the installation of pre-wired devices. To ensure that the box can be found quickly after plastering, we recommend the universal plaster cover to protect the inside of the box.