American Outdoor Grill Stainless Steel Cooking Grate For AOG 30 Inch Grill - Set Of Three - 30-B-11. 30-B-11. Replacement Grill Grates and Grids. Easily replace your stainless steel AOG cooking grates with this set. Included are three cooking grates that are designed to fit all AOG 30 inch grills. FOR USE WITH AOG PRODUCTS ONLY.