Lodge Pro-Logic P12SGR3 12″ Pre-Seasoned Cast Iron Square Grill Pan for $27.19. Shipping is free on orders over $35. If needed, use this Filler Tool to pad the order for free shipping. Here is a screenshot for reference. This 12″ pre-seasoned cast-iron square grill pan has raised ridges to allow fat to drain. Most places have it for about $39.