Direct store Parts DS105 Solid Stainless Steel Cooking grids Replacement Ducane:4100, Affinity 4100, Affinity 4200, Affinity 31421001; Master Forge : MFA550CBP, P3018 Gas Grill; Dimensions: 17 13/16″ x 9 3/4″ Each, 17 13/16″ x 29 1/4″ Total; Material: Solid Stainless Steel;