Iron Window Y
Iron Window Y’s are used when the sash no longer stays up on it’s own due to damaged or missing sash weights and balances. They mount to the jamb at about the level you want your window open and with a loose screw will pivot in or out of the way of the sash. The bottom of the sash is held up by the v shaped section, with the short end facing the exterior of the home.
The Y measures 2-5/8″ long, 2″ at it’s widest point, and 1/4″ thick. It is made of cast iron and painted white.