KILKIN UPVC offers a robust and versatile sliding window and door system featuring 63mm double-rail, 111mm triple-rail, and 38mm sash profiles. Engineered with a 3-chamber design, it ensures excellent thermal, sound, and water insulation. Compatible with single glazing (4–6mm) and installation glazing (15–17mm) via grey-sealed glazing beads, it supports both roller shutter and non-shutter installations. Additionally, the system is available in elegant wood-textured laminated finishes, combining modern performance with timeless aesthetics.