Kbe residential door systems have long been the basis for doors And door systems featuring high quality technology and visual Appeal. They present all the advantages that fastidious building Owners have come to expect from a residential door. For that extra Design, stability, safety, and thermal insulation kbe has developed A new residential door system for an installation depth of 70 mm. Residential door system: Kbe use only the highest quality pvc-u from leading international companies which guarantees high stability, functional perfection and the long life of our product. Special additives make the window or door profiles weather resistant, sturdy, and colour protected. Kbe has a strong environmental policy and guarantees the 100% recycling of used pvc-u windows and any waste from the fabrication process. Modern design with chamfered edges Larger chambers and thicker steel for greater stability and torsional resistance Welded corner blocks for torsional resistance 13 mm eurogroove position for greater security 5-chamber double seal technology with 70 mm installation depth for enhanced thermal insulation Threshold with thermal break