The stylish Kiaro drain grate has a timeless look that complements any surrounding. This decorative grate showcases linear openings with solid bars to help prevent leaves and debris from entering the drainage system. Rated for NDS Class D loads when properly installed. The ductile iron drain cover has an open surface area of 167.4 sq. in. per meter and flow rate of 512.8 GPM per meter. Grate is both ADA compliant and heel proof. Two half-meter (19.69 in.) grates will cover one BG-FILCOTEN 300 12 in. trench drain. Iron grates are painted black to inhibit rust. Over time, it will form a protective iron-oxide patina.