More light. More glass. More security.
KF 520 – Internorm's new generation is a perfect combination of innovative design and technical know-how. With a glass sash and a slimline frame, the design evokes the look of fixed windows, that let more natural light into your home. The perfect solution for modern and contemporary architecture. Also, your new window will feature the revolutionary I-tec secure locking mechanism. Hidden in the window sash, this locking system makes levering the window almost impossible. I-tec Secure is integrated into the new KF 520 as standard and achieves security class up to RC3.