Cutting Tip, Compatible Fuel Type MAPP, Propylene, Tip Series O-FH, Tip Size 54, Tip Design Two Piece, Maximum Cutting Thickness 1 1/2 in, Compatible Manufacturer Oxweld, Flame Type Medium to Heavy Preheat, Pressure Rating (Fuel) 10 to 17 psi, Pressure Rating (Oxygen) 40 to 55 psi