Can I get the GBS grates for my 18" or 26" charcoal grill? The Gourmet BBQ System is currently only available for 22” charcoal models and the Summit Charcoal series. Related articles Do you need the Gourmet BBQ system cooking grates to use the inserts? How do I clean my griddle? Which is better Porcelain Enamel or Stainless Steel? I heard it's not safe to use a grill brush with wire bristles. My cooking grates are starting to rust. Do they need to be replaced?