Fountain nozzle type If you plan on installing a fountain, then you’ll need to choose what style fountainhead / nozzle you want. Standard nozzle – this is a turbulent jet flow that can be used vertically or horizontally and the size of the jet adjusted by water pressure. Fan nozzle – this fountainhead splits the flow into multiple jets to create a delta-fan shape. These are usually vertical installations. White-water foam nozzle – this fountainhead creates a frothy white-water foam jet that offers lots of visual volume via the foam-effect. Laminar flow nozzle – these create flows of fluid particles following smooth paths in layers. These appear smooth and solid, like perfectly cylindrical beams of water.