Arizona Vortex Air Nozzles use a small amount of compressed air and amplify the flow to generate the same results as open blow off jets and open pipe and nipples. The Nozzles deliver flow rates up to 25 times greater than the compressed air that they use. Noise levels are reduces substantially with the Arizona Vortex Nozzles. Expenditures for additional compressor capacity can be delayed or often eliminated. Available in: Stainless Steel or Aluminum Amplify Air Flows: 25:1 Spray Pattern: Conical; will increase one degree in diameter per foot. Adjustable dial: Allows you to alter flow and thrust. Easily fits a factory air gun to improve performance