We purchased this for our new Napoleon grill. Unfortunately, it cracked within 20 minutes of use. We heard a loud bang inside the grill then quickly realized the cast iron has cracked. We let the grill cool down completely before taking it out. As one of the reviewers has mentioned, there are ashes everywhere so it's probably true that putting a charcoal tray may not be a good idea. The charcoal tray also showed some rusting once it cooled down. This is a poor quality product and definitely not a good buy. We just returned it and now waiting for a refund.