Hi, can any tell me what the part is called that fits in this little square at the bottom of the window? I would like to be able to lock the window with it slightly open but can't seem to find this part anywhere
Difficult to say if there should be anything there as there are no screws holes but you can try googling for 'cockspur night vent keeps', there's plenty that might work but make sure of the size particularly height as the window needs to clear it when fully closed
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