HarrisĀ® 1501260 Cutting Tip, Size: #4, 4 oz - 2 psig (Low), 5 - 15 psig (Equal), Oxygen: 50 - 75 psig, Flame Type: Medium Preheat, Gas Service: Natural Gas, Propane, Cutting Thickness: 3 - 6 Inch, #42 Orifice