Economical window vent stop allows window to be partially opened while keeping out unwanted guests.
Lock is mounted on the face of the side rail of the upper sash. Lock may be mounted higher or lower depending on the amount of ventilation and security desired.
Lock is operated by pushing knob along slit. Shown above locked on the left and unlocked on the right.
Scuff plate is installed on top of lower sash.
Sold by the pair. Includes screws.