Welding Torch, Flame Type Swirl, Connection Type Quick Connect, Ignition Type External Lighter, Tip Manufacturer Model Number ST-11, Compatible Torch Manufacturer Part Number STK-11, Silver Braze Size (MAP-Pro, Maximum) 3 in, Soft Solder Size (MAP-Pro, Maximum) 6 in, Silver Braze Size (Propane, Maximum) 2 in, Soft Solder Size (Propane, Maximum) 4 in, Tip Series Extreme STK, Tip Type Double Barrel, Compatible Fuel Type MAP/Pro, Propane, Application Brazing, Soldering