Single action window opening control device (WOCD) designed to install directly to the window jamb extension or return and interact with the active sash of any hung or sliding window.

This device comes with mounting hardware to assure proper installation and is available in right and left Handing. Tested and complies with the ASTM F2090-2008 & 2010 codes.

Packed and Sold in Pairs (1 Left Hand Lock, 1 Right Hand Lock, 4 Mounting Screws)

Screw hole center 15/16"