Napoleon Cast Iron Cooking grids for Freestyle 365 S83039Ideal for upgrading or replacing cooking grids with this set of two Porcelainized Cast Iron Cooking Grids for the Freestyle 365 Gas Barbecue Grill. This replacement contains a pair of cast iron cooking grids. Cast iron holds heat and provides the best searing on a grill. Properly maintained and seasoned cast iron is nonstick and highly durable. To confirm that you are purchasing the correct product, refer to your product manuals parts list.