The Renaissance Cooking Systems - Insulating Liner for the RDB1 / RDB1EL The RCS stainless steel grill liner jackets helps protect your outdoor kitchen from the high heat your grill produces. Custom made to fit RCS grills, each grill insulating jacket features durable double-lined 304 stainless steel construction for maximum strength and protection. This product is required when installing the RDB1 & RDB1EL side burner into a cabinet constructed of combustible materials. Fits: RDB1 & RDB1EL Side Burners Only Cut Out: 14 3/8" Wide x 20 1/4" Deep x 9 1/4" High Required when installing a grill into a cabinet constructed with combustible materials.