Curtron SPD-20-AL-DBL-3684 36" x 84" Service-Pro Series 20 Swinging DoorThe Curtron SPD 20 AL DBL 3684 is designed specifically to increase customer and employee comfort. It does this by reducing the noise coming from the kitchen, stock rooms, warehouses, and other such areas while providing years of dependable service. The Service Pro Door has an attractive design, engineered of . 063" tempered aluminum with a satin anodized finish. It has a 9" x 14" clear window. It does not come with a kickplate or bottom pin. The SPD