I-tec Secure Innovation

with the unrivalled locking I-tec Secure you can be sure that your windows offer reliable protection. Instead of the customary locking pegs, flaps ensure the prices locking of the window sash with the frame. Levering of the window is practically impossible. I-tec Secure is integrated in the new KF520 as standard and is available up to RC3 upon request.

The flaps also offer significant advantages when cleaning the windows. Only a few sash parts protrude, closing elements are completely hidden.  I-tec Secure is integrated in the UPVC or UPVC/aluminium window KF520 as standard and achieves security class RC2N with lockable handle as standard - up to RC3 upon request.

Advantages:

• Perfect security up to RC3 available due to integrated flaps
• Locking is situated on all four sides
• Levering of window is practically impossible
• No visible locking elements
• Easy to clean

Tried & Tested 79 times - 79 times failed.
Internorm's UPVC window with integrated I-tec locking with maximum security. Be assured of its result!