High Pressure Cast-Iron Burner Head with Brass Fitting OrificeUniversal replacement burner With our gas one burner head, you can use it with high pressure or low pressure regulators (high pressure regulator is recommended for high output) Brass fitting orifice Block includes brass fitting orifice Block & air Shutter and spring Heat resistant Cast Iron will not melt easily compared to aluminum construction To be used with propane only Note: Image 3 accessories: Those parts come pre installed for customers