Cutting Tip, Compatible Fuel Type Acetylene, Tip Series 4202, Tip Size 4, Tip Design One Piece, Maximum Cutting Thickness 4 in, Compatible Manufacturer Purox, Application General Purpose, Hand Cutting, Flame Type Medium Preheat, Pressure Rating (Fuel) 5 to 10 psi (Acetylene), Pressure Rating (Oxygen) 30 to 73 psi