280-24R® 24″ reversible manhole ring with cover or grate– cast gray iron. Stock item. Ring may be used as top or bottom flanged. Sold as a set or individual ring, cover or grate. Pedestrian rated grate option may be available, call for details. H-20 traffic rated when properly installed in reinforced concrete. Uncoated cast gray iron, ASTM A48 CL35B or better, AASHTO M306-10 (M105). Use with a 300-24® storm sewer cover for storm sewer manholes or storm drain inlets. Also used with 300-24® sanitary sewer or water cover or a 300-24® manhole grate. Special lettering or LOGOs may be available. Made In USA. LEED® certifications available on request. Please use the Contact Form or call us to request info & submittal sheets. 1-800-258-2278 Toll Free or (972) 263-1360 DFW Local.