Vertical Jet Nozzle / Comet Nozzle An almost limitless range of interesting effects and patterns can be achieved with our Comet nozzle. Used as a single jet, or in groups, or in concert with other nozzle models, the Comet’s single, clear stream, glass-like effect can easily be configured to spray inward from the perimeter, or outward from center, and is most often incorporated into spray rings and bars. Available in wide range from 1/8" to 1.1/2" BSP.