Primo Round Cast Iron Charcoal Grate, PG0177909Primo Round Cast Iron Charcoal Grate (PG0177909) Keep your Primo Round Kamado Grill performing at its best with this heavy duty cast iron charcoal grate. As an OEM replacement part, its designed to sit inside the firebox and hold lump charcoal securely while allowing optimal airflow to the fire. Why Its Important Efficient airflow: Precision cut slots let oxygen flow freely for hotter, steadier burns. Better fuel use: Helps charcoal ignite faster and