Expand your barbecuing horizons while delivering professional results — and get the most out of your Weber gas grill. It all starts with the Gourmet BBQ System Gas Grill Cooking Grates for Genesis 300-series grills. The stainless steel cooking grate has a 12-inch diameter stainless steel grate insert. With the insert in place, you’re all set for traditional grilling. For more versatile cooking options, remove the insert and replace with the Gourmet BBQ Griddle, Wok or Sear Grate (each sold separately). Fits Genesis 300 series gas grills.