C.R. LAURENCE S4038 CRL Wood Window Vent Lock

Works on Double Hung Wood Windows The brass plated steel Wood Window Vent Lock mounts onto the edge of the upper window. The sliding stud stops the window from opening any further than desired. It allows double hung wood windows to be opened partially for ventilation, while preventing them from being fully opened. Minimum Order: 1 Package Two lock assemblies with strike plates and mounting screws per package.