If you're tired of having to buy propane for your Blackstone griddle, we have a solution for you. The Blackstone Natural Gas Conversion Kit is exactly what you need to convert your propane griddle to natural gas. The Conversion Kit is compatible with Blackstone 28 in. Griddles, 36 in. Griddles, Tailgater, Rangetop Combo and single Burner Rec Stove. Culinary Collection griddles are not compatible with the provided orifice wrench. However, the provided valves and replacement orifices in the kit are compatible with Culinary Collection Griddles. To convert these griddles to natural gas, it is necessary to source a compatible orifice wrench. The 1902 Culinary 36" Griddle is not compatible with natural gas in any capacity.