bbq factory Replacement Porcelain coated Cast Iron Cooking Grid JGX991 Set of 1 for Select Gas Grill Models By Big Green Egg , Vision Grills Classic Kamado Charcoal Grill and Others Porcelain Cast iron cooking grids, Dia.: 18 3/16" Big Green Egg Models: Large EGG, Large Big Green Egg Part Number: 18CI, 18SS, 18P Original Part Numbers: 18CI, 18SS, 18P Fits Vision Grills Classic Kamado Charcoal Grill VGKSS-CC2, Porcelain coatedfinished: Polished