Napoleons Conversion Kit For The 500 And 700 Series Inline Range Top Burners Alows You To Change Fuel Types, Ensuring The Safe And Efficient Operation Of Your Bbq Grill. This Is Ideal If You Decide To Make The Switch From Propane To Natural Gas. They Are Specifically Built To Maintain The Correct Gas Pressure And Provide Optimal Grilling Performance. Engineered To Regulate The Flow Of Gas To Your Grill, Ensuring The Proper Amount Of Gas Is Provided For The Best Fuel Consumption And Consistent Heat. Never Sacrificing Quality In Your Investment, Our Convertible Valves For Built-In Barbecues Seamlessly Convert Your Barbecue To The Desired Fuel Type So That You Can Grill With Confidence, Knowing That Your Safety And Grilling Experience Are Prioritized.