TurboTorch A-3 Air Acetylene Tip has a tip size of 3/16" and gas flow of 3.6 at 14 psig. It features removable orifice screw and a color-coded "O" ring to choose the correct tip for preferred gas. It is ideal for high capacity applications like HVAC and is used for soft solder of 1/4 - 1" or silver braze of 1/8 - 1/2".