Vaporizing panels help to distribute the heat evenly across the grill. They are installed over the main burners. Once they show wear and tear such as larger holes they need to be replaced. When the holes begin touching or growing larger, you will get hot spots in your grill.
This set of 2 replacement vaporizing panels is for use with AOG 24" grills. They are compatible with both built-in and freestanding units.