Cascade Jet Water Fountain Nozzle Cascade is a small to large adjustable injector nozzle generates a lively full water pattern and offers oxygen enrichment. With injector effect, water and air are suctioned in, mixed intensively and accelerated into the air by the injector jet as an impressive soft flowing fountain. The foam (spume) effect changes depending on the water level and accentuates every public area. The nozzle is fixed under the water level, thus, it takes the water upwards and makes the water column thick, anti-wind and splendid. Water Column Fountain Nozzle is widely used in gardens, plaza’s and public ponds. It is always used in fountains equipped with water level control.