Primo Cast Iron Firebox Divider For Oval Lg 300 (1 Pc) PG00344Primo Cast Iron Firebox Divider For Oval Lg 300 (1 Pc) PG00344 Product Details A firebox divider is a handy tool that is inserted into the bottom grate of your grill and actually divides your grill in half. It is a perfect solution for grilling for a smaller group, plus it allows you to cook using direct heat on one side of the grill, and indirect heat on the other side. This firebox divider is made specifically for use with your Oval LG 300 Primo