Natural Gas Regulator Kit or all Built-ins(P)Napoleon's high quality grill regulator kits ensure the safe and efficient operation of your BBQ Grill. Designed to maintain the correct gas pressure and provide optimal grilling performance. This unit is designed to hook directly to the pre installed metal gas line that come with natural gas fueled barbecues. A regulator is engineered to regulate the flow of gas to your grill, ensuring the proper amount of gas is provided for the best fuel