The I-tec Secure is resistant to modern-day burglar techniques such as levering, helping reduce the risk of potential break-ins or unwanted intruders. I-tec secure integrated within the UPVC and UPVC/aluminium windows KF520 and KF510. With minimal parts of the I-tec Secure hardware, your new window system will also be exceptionally easy to clean. The locking features that are concealed into the sash don’t protrude as much as conventional locking systems, making them easy to clean and maintain.