The three-chamber window with thermal insulation is engineered for creating windows with concealed sashes, rendering them invisible from the exterior. Featuring a specially designed frame shape that conceals the entire height of the sash profile, the system offers versatility with a broad selection of glazing options, accommodating single and double-pane configurations as well as acoustic and anti-burglary glass. Profile drainage is available in two variations: traditional and concealed. Additionally, the system allows for profile bending, offering flexibility in design. The concealed sash system is favored by designers for its ability to seamlessly integrate windows into aluminum and glass structures, ensuring a uniform appearance for both opened and fixed segments from the outside. With a wide array of color options, including those from the RAL palette, structural colors, Aliplast Wood Colour Effect, anodized finishes, and bi-color combinations, there’s ample choice to suit various aesthetic preferences.