Check the listing for details. 13700RNOS NOS Fogger Nozzle. Color: Stainless Steel, Condition: New, Made in US. Listed at 122.95 USD. Annular Discharge Fogger Nozzle (Stainless Steel). Annular Discharge Fogger Nozzle (Stainless Steel) - NOS has done it again! The stainless steel Annular Discharge nozzle is the most effective design in the world, The Annular Discharge Fogger® nozzle's secret lies in specially engineered annular orifices which mix the nitrous and fuel in a radial pattern outside the nozzle tip to provide superior atomization of supplemental fuel as well as more even fuel distribution within the nitrous flow. This new nozzle design produces an even tighter "cone" of nitrous oxide/fuel mixture and provides more precise control of nitrous/fuel ratios throughout the jetting spectrum. It is important to note that the Annular Discharge nozzle shoots out straight, and as such is NOT a direct replacement for the.