New parts from bbq factory® Replacement Porcelain Coated Cast Iron cooking grid, Porcelain Steel Heat Plates for Charbroil 463440109 Gas Grills; Heat Shield Dimensions: 14 5/8″ x 4 1/4″; Heat Shield Material: Porcelain Steel; Grill Grid Dimensions: 3 Grids 16 7/8″ x 9 5/16″; Each or Total 16 7/8″x 27 15/16″; Cooking Grate Material: Porcelain coated Cast Iron. Intensive holes for better flame effect. Cooks better! Lasts longer; Extend the life of your grill; Exact-fit parts;