Hafele KNL Extension
911.83.733

Latch Extensions gives you the ability to extend the length of your door latch, allowing you to keep your door and window open at the same time, without any modifications.

Latch Extension Function - fits neatly into the wireframe latch with adjustable twist lock nut that lets you shorten the length of your latch just the way you like it.

Features:

• Tested and approved for use with specific fire door types. 

Specifications:

• Backset: 70mm - 127mm