Primo Large Oval Firebox Divider, PG00344Split lump charcoal for two zone cooking or use less fuel for smaller, more efficient grilling sessions. Add versatility to your Primo Large Oval with this OEM heavy duty firebox divider. The divider fits into the charcoal grate to split the lump charcoal area in half, allowing you to cook with a smaller fire or create true two zone cooking setups. Why Use a Firebox Divider? Two Zone Cooking: Bank charcoal to one side for direct and indirect grilling