Description: Lid: Painted Ductile Iron Lid & Rim, Bolt-Down, Water-TightBolts: Stainless Steel 15/16"Skirt: Galvanized SteelSpecifications:Manufacturer: Emco WheatonMax Diameter: 15.1"Clear Hole ID: 9.4"Overall Height: 12"Wheel Loading: Meets AASHTO H20EMCO Part Number: A0721-101