Propane Lp Natural Gas Brass Jet Burner Nozzle Made Of Brass, The Propane Orifices Are Corrosion Resistant And Heat Resistant, And Can Be Used For A Long Time. The Installation Method Is Very Simple,Orifice Spray Tip Have 11 Types Different Hole Diameter Size,Solved A Conversion Problem Without Having To Hunt Everywhere.And Drilling Is Easy To Get More Of The, Propane Nozzle Aperture Size You Want, If You Have A Drilling Tool.Nozzle Holes Of Different Sizes Can Meet The Needs Of Different Flow Rates, Allowing For Larger Combustion Flames.