This 9 inch sliding vent brick features a classic hit and miss design crafted from cast iron with an antique iron finish. Designed to regulate airflow, it is ideal for traditional buildings, period restorations, and heritage properties. The adjustable sliding mechanism allows controlled ventilation while maintaining an authentic Victorian appearance. Suitable for external walls and air circulation projects. LSI keywords include cast iron air vent, sliding vent brick, Victorian ventilation grille, and traditional air bricks.