Cutting Tip, Compatible Fuel Type Natural Gas, Propane, Tip Series 4203, Tip Size 9, Tip Design One Piece, Maximum Cutting Thickness 5 in, Compatible Manufacturer Purox, Application General purpose, Flame Type Medium Preheat, Pressure Rating (Fuel) 10 to 15 psi, Pressure Rating (Oxygen) 35 to 44 psi