Square plastic framed escape hatch with clear UV-Resistant Plexiglass window. Low profile design with opening stay and lockable handles. Dimensions: 48 x 48 cm. Molded of durable, corrosion-proof high-impact ABS plastic smoke acrylic lenses. They give a professionally finished look with snag-resistant radiused corners, hidden fasteners and interior latch dogs and trim rings. A rubber gasket creates a watertight seal. Noncorroding plastic hinges open the hatch to 90 degree.