Offers exceptional style and efficiency all in one. This option is a popular choice for vertically shaped openings because of their ease of operation. When opened, the Rusco® Casement window helps direct airflow into the home to maximize ventilation. The windows are equipped with multipoint locks that ensure an air-tight seal and foldable handles that promote ease of use. The Rusco® Casement can be fitted with double Pilkington Hard Coat Low E Argon Glass. The double pane unit is 7/8″ thick. Quality to last a lifetime!