National 8m Bench Burner W/o Tip

Flame with: 3mm - 19mm (Surface Mix Burner) Oxygen with fuel gas at pressures as low as 4" water column. Surface Mix: Threaded Tips (Interchangeable) SM-5,7 & 21 Pre-Mix: Using PA-1 Adaptor for all hand torch tips. Fuels: Natural Gas or Propane with Oxygen Comments: Adjustable swivel ball mounting/ No Wrenches Required!