The Regal™ 590 Series features 4,032 sq. cm primary cooking surface and includes 5 stainless steel Dual-Tube™ burners, illuminated control knobs, reversible heavy-duty cast iron cooking grids, stainless steel Flav-R-Wave™ cooking system, and electronic ignition. The 590 features stainless steel side shelves, and an enclosed cabinet base. The Regal™ 590 features reversible heavy duty cast iron cooking grids. The S 590 IR features 9mm stainless steel rod cooking grids and a powerful infrared side burner.