Grill Valueparts REV9IN 304 Stainless Steel High Heat Charcoal Fire Grate for Large and Minimax Big Green Egg Grill. Dia. 9 Inches 304 Stainless Steel High Heat Charcoal Fire Grate for Large and Minimax Big Green Egg Grill, 9 inches. Material: Stainless steel Heavy duty stainless steel construction and long lasting. Retains heat and delivers professional searing, prevents sticking and allows for easy clean up, much longer life than porcelain grates. More air flow - starts easier and burns hotter with less charcoal. Doesn't clog with ash and charcoal and eliminates frequent cleaning need. Fastest and easiest way to reach and maintain high or low grill temperature.