The Primo Oval G 420 transcends standard gas grills by integrating a premium grade ceramic shell. Unlike metal gas grills that radiate high amounts of heat and pull the moisture out of food, the ceramic shell of the Primo Oval G 420 acts as an insulator to retain more heat and preserve the natural moisture and oils of the food. The assembled grill features premium grade ceramics, 304 stainless steel cooking grates, burners, flavor grids, exterior and components. Every Primo is built for years of use and enjoyment. Our Patented Oval delivers the highest level of cooking versatility and performance. It creates two distinct cooking zones so that you can cook directly over the burner on one half of the grill and cook indirectly with the use of a deflector. This two-zone cooking method gives you far more control over the doneness food. If you’ve ever tried to grill a steak and vegetables at the same time it’s likely that the steak came out fine, but the vegetables came out too charred. Or you had to roast the vegetable first, then keep them warm while you grill the steaks. We ran into the same problem. Now you know why we developed the Primo Oval. An added benefit of the Primo Oval Design is that it holds more food than round grills. Most food is not round and you can cook out to the edge of the Primo Oval without losing valuable cooking space.