Ekena Millwork - 12&quot;W x 12&quot;H Round Gable Vent Louver, Functional - Gable vents offer not only a beautiful exterior piece, but also add to keeping the appropriate ventilation for your attic.  Our urethane gable vents come to you fully primed and ready for your paint.  They easily mount to the surface of your home, over your existing ventilation hole, to add airflow and beauty to your home.